Diagnostic and interventional radiology最新文献

{"title":"Use of gelatin sponge to seal the biliary tract after percutaneous transhepatic biliary drainage in patients with liver transplants.","authors":"Ali Özgen","doi":"10.4274/dir.2023.232344","DOIUrl":"10.4274/dir.2023.232344","url":null,"abstract":"<p><p>Percutaneous transhepatic biliary drainage (PTBD) is commonly used in the treatment of malign and benign biliary pathologies. Certain complications after PTBD may occur, such as biliary fistula, biliary leakage, bilioma, and hematoma. The purpose of this study was to evaluate the safety and effectiveness of using a sterile gelatin sponge to seal the biliary tract after PTBD in patients with liver transplants to prevent complications. A total of 131 biliary drainages were introduced in 97 patients, and a sterile gelatin sponge was used to seal the biliary tract after removal of the biliary drainage catheter. The patients were immediately examined for complications using ultrasound and then followed up clinically unless imaging was required. Five fluid collections within the liver with a diameter <2 cm, consistent with hematoma or bilioma, were resolved spontaneously. No hematoma or bilioma required treatment, and no biliary leakage or fistula was detected. No compli¬cations related to the use of the sponge were observed. The use of a sterile gelatin sponge is a safe and effec-tive method for sealing the biliary tract to prevent complications after PTBD in patients with liver transplants.</p>","PeriodicalId":11341,"journal":{"name":"Diagnostic and interventional radiology","volume":" ","pages":"325-327"},"PeriodicalIF":1.4,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11590735/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10125048","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Meta-research on reporting guidelines for artificial intelligence: are authors and reviewers encouraged enough in radiology, nuclear medicine, and medical imaging journals?","authors":"Burak Koçak, Ali Keleş, Fadime Köse","doi":"10.4274/dir.2024.232604","DOIUrl":"10.4274/dir.2024.232604","url":null,"abstract":"<p><strong>Purpose: </strong>To determine how radiology, nuclear medicine, and medical imaging journals encourage and mandate the use of reporting guidelines for artificial intelligence (AI) in their author and reviewer instructions.</p><p><strong>Methods: </strong>The primary source of journal information and associated citation data used was the Journal Citation Reports (June 2023 release for 2022 citation data; Clarivate Analytics, UK). The first- and second-quartile journals indexed in the Science Citation Index Expanded and the Emerging Sources Citation Index were included. The author and reviewer instructions were evaluated by two independent readers, followed by an additional reader for consensus, with the assistance of automatic annotation. Encouragement and submission requirements were systematically analyzed. The reporting guidelines were grouped as AI-specific, related to modeling, and unrelated to modeling.</p><p><strong>Results: </strong>Out of 102 journals, 98 were included in this study, and all of them had author instructions. Only five journals (5%) encouraged the authors to follow AI-specific reporting guidelines. Among these, three required a filled-out checklist. Reviewer instructions were found in 16 journals (16%), among which one journal (6%) encouraged the reviewers to follow AI-specific reporting guidelines without submission requirements. The proportions of author and reviewer encouragement for AI-specific reporting guidelines were statistically significantly lower compared with those for other types of guidelines (<i>P</i> < 0.05 for all).</p><p><strong>Conclusion: </strong>The findings indicate that AI-specific guidelines are not commonly encouraged and mandated (i.e., requiring a filled-out checklist) by these journals, compared with guidelines related to modeling and unrelated to modeling, leaving vast space for improvement. This meta-research study hopes to contribute to the awareness of the imaging community for AI reporting guidelines and ignite large-scale group efforts by all stakeholders, making AI research less wasteful.</p><p><strong>Clinical significance: </strong>This meta-research highlights the need for improved encouragement of AI-specific guidelines in radiology, nuclear medicine, and medical imaging journals. This can potentially foster greater awareness among the AI community and motivate various stakeholders to collaborate to promote more efficient and responsible AI research reporting practices.</p>","PeriodicalId":11341,"journal":{"name":"Diagnostic and interventional radiology","volume":" ","pages":"291-298"},"PeriodicalIF":1.4,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11590734/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139905258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Burnout and the role of mentorship for radiology trainees and early career radiologists","authors":"Richard J Fagan, Dane Eskildsen, Tara Catanzano, Rachel Stanietzky, Serageldin Kamel, Mohamed Eltaher, Khaled M Elsayes","doi":"10.4274/dir.2024.242825","DOIUrl":"10.4274/dir.2024.242825","url":null,"abstract":"<p><p>Burnout is a widespread issue among physicians, including radiologists and radiology trainees. Long hours, isolation, and substantial stress levels contribute to healthcare workers experiencing a substantially higher rate of burnout compared with other professionals. Resident physicians, continuously exposed to stressors such as new clinical situations and performance feedback, are particularly susceptible. Mentorship has proven to be an effective strategy in mitigating burnout. Various mentorship delivery models exist, all aiming to have mentors serve as role models to mentees, thereby alleviating stress and anxiety. Physician groups and healthcare enterprises have actively implemented these programs, recognizing them as both successful and cost-effective. This article explores different mentorship models, their implementation processes, and the effectiveness of these programs as a standard component of academic departments.</p>","PeriodicalId":11341,"journal":{"name":"Diagnostic and interventional radiology","volume":" ","pages":"313-317"},"PeriodicalIF":1.4,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11590732/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141247644","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A comparison of two artificial intelligence-based methods for assessing bone age in Turkish children: BoneXpert and VUNO Med-Bone Age.","authors":"Evrim Özmen, Hande Özen Atalay, Evren Uzer, Mert Veznikli","doi":"10.4274/dir.2024.242790","DOIUrl":"10.4274/dir.2024.242790","url":null,"abstract":"<p><strong>Purpose: </strong>This study aimed to evaluate the validity of two artificial intelligence (AI)-based bone age assessment programs, BoneXpert and VUNO Med-Bone Age (VUNO), compared with manual assessments using the Greulich-Pyle method in Turkish children.</p><p><strong>Methods: </strong>This study included a cohort of 292 pediatric cases, ranging in age from 1 to 15 years with an equal gender and number distribution in each age group. Two radiologists, who were unaware of the bone age determined by AI, independently evaluated the bone age. The statistical study involved using the intraclass correlation coefficient (ICC) to measure the level of agreement between the manual and AI-based assessments.</p><p><strong>Results: </strong>The ICC coefficients for the agreement between the manual measurements of two radiologists indicate almost perfect agreement. When all cases, regardless of gender and age group, were analyzed, an almost perfect positive agreement was observed between the manual and software measurements. When bone age calculations were analyzed separately for boys and girls, no statistically significant differences were found between the two AI-based methods in any subgroup. For boys regardless of age, the ICCs were 0.995 for VUNO and 0.994 for BoneXpert (z = 1.597, <i>P</i> = 0.110), while for girls, the ICCs were 0.994 and 0.995, respectively (z = -1.303, <i>P</i> = 0.193). The overall agreement with manual measurements was high for both VUNO and BoneXpert. In both boys and girls, the agreement remained consistent across different age groups. These findings indicate that both AI-based bone age assessment tools have a high degree of agreement with manual measurements across all age and gender groups, with no significant superiority of one method over the other.</p><p><strong>Conclusion: </strong>Both BoneXpert and VUNO demonstrated high validity in assessing bone age, with no statistically significant differences between the two methods across gender or pubertal status groups. Notably, this study represents the first evaluation of both BoneXpert and VUNO for bone age assessment in Turkish children, highlighting their potential as reliable and clinically relevant tools for this population.</p><p><strong>Clinical significance: </strong>Investigating the most suitable AI program for the Turkish population could be clinically significant.</p>","PeriodicalId":11341,"journal":{"name":"Diagnostic and interventional radiology","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142105422","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Feasibility study of computed high b-value diffusion-weighted magnetic resonance imaging for pediatric posterior fossa tumors.","authors":"Semra Delibalta, Barış Genç, Meltem Ceyhan Bilgici, Kerim Aslan","doi":"10.4274/dir.2024.242720","DOIUrl":"https://doi.org/10.4274/dir.2024.242720","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate the diagnostic efficacy of computed diffusion-weighted imaging (DWI) in pediatric posterior fossa tumors generated using high b-values.</p><p><strong>Methods: </strong>We retrospectively performed our study on 32 pediatric patients who had undergone brain magnetic resonance imaging for a posterior fossa tumor between January 2016 and January 2022. The DWIs were evaluated for each patient by two blinded radiologists. The computed DWI (cDWI) was mathematically derived using a mono-exponential model from images with b = 0 and 1,000 s/mm² and high b-values of 1,500, 2,000, 3,000, and 5,000 s/mm². The posterior fossa tumors were divided into two groups, low grade and high grade, and the tumor/thalamus signal intensity (SI) ratios were compared. The Mann-Whitney U test and receiver operating characteristic (ROC) curves were used to compare the diagnostic performance of the acquired DWI (DWI₁₀₀₀), apparent diffusion coefficient (ADC)₁₀₀₀ maps, and cDWI (cDWI1500, cDWI₂₀₀₀, cDWI₃₀₀₀, and cDWI₅₀₀₀).</p><p><strong>Results: </strong>The comparison of the two tumor groups revealed that the tumor/thalamus SI ratio on the DWI₁₀₀₀ and cDWI (cDWI1500, cDWI₂₀₀₀, cDWI₃₀₀₀, and cDWI₅₀₀₀) was statistically significantly higher in high-grade tumors (<i>P</i> < 0.001). In the ROC curve analysis, higher sensitivity and specificity were detected in the cDWI1500, cDWI₂₀₀₀, cDWI₃₀₀₀, and ADC₁₀₀₀ maps (100%, 90.90%) compared with the DWI₁₀₀₀ (80%, 81.80%). cDWI₃₀₀₀ had the highest area under the curve (AUC) value compared with other parameters (AUC: 0.976).</p><p><strong>Conclusion: </strong>cDWI generated using high b-values was successful in differentiating between low-grade and high-grade posterior fossa tumors without increasing imaging time.</p><p><strong>Clinical significance: </strong>cDWI created using high b-values can provide additional information about tumor grade in pediatric posterior fossa tumors without requiring additional imaging time.</p>","PeriodicalId":11341,"journal":{"name":"Diagnostic and interventional radiology","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142105425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Detection of synovial inflammation in the sacroiliac joint space through intravoxel incoherent motion imaging: an alternative to contrast agents.","authors":"Murat Ağırlar, Barış Genç, Aysu Başak Özbalcı","doi":"10.4274/dir.2024.242749","DOIUrl":"https://doi.org/10.4274/dir.2024.242749","url":null,"abstract":"&lt;p&gt;&lt;strong&gt;Purpose: &lt;/strong&gt;We investigated the diagnostic accuracy of simplified intravoxel incoherent motion (IVIM) imaging for detecting synovial inflammation in the sacroiliac joint (SIJ) in a population with active sacroiliitis.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Methods: &lt;/strong&gt;In accordance with the Assessment of Spondyloarthritis International Society criteria, 86 SIJs of 46 patients with active sacroiliitis were included in this retrospective study conducted between November 2020 and January 2022. Based on T1-weighted post-gadolinium images, the SIJs were divided into two groups: synovial inflammation positive (SIP) (n = 28) and synovial inflammation negative (SIN) (n = 58). Synovial areas in the SIJ space were independently and blindly reviewed for the presence of inflammation by two radiologists with differing levels of expertise in radiology. Using four b values, apparent diffusion coefficient (ADC)= ADC (0, 800) and the simplified 3T IVIM method parameters true diffusion coefficient (D&lt;sub&gt;1&lt;/sub&gt;)= ADC (50, 800), D= ADC (400, 800), f&lt;sub&gt;1&lt;/sub&gt;= f (0, 50, 800), f&lt;sub&gt;2&lt;/sub&gt;= f (0, 400, 800), pseudodiffusion coefficient (D*)= D* (0, 50, 400, 800), ADC&lt;sub&gt;low&lt;/sub&gt; = ADC (0, 50), and ADC&lt;sub&gt;diff&lt;/sub&gt;= ADC&lt;sub&gt;low&lt;/sub&gt; - D were generated voxel by voxel for each patient. The IVIM and ADC parameters at the SIN and SIP joints were compared.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Results: &lt;/strong&gt;The D parameter was significantly increased in SIP areas (1.23 ± 0.34 × 10&lt;sup&gt;-3&lt;/sup&gt; mm&lt;sup&gt;2&lt;/sup&gt;/s) compared with SIN areas (1.02 ± 0.16 × 10&lt;sup&gt;-3&lt;/sup&gt; mm&lt;sup&gt;2&lt;/sup&gt;/s) (&lt;i&gt;P&lt;/i&gt; = 0.004). Conversely, the D* parameter was significantly decreased in SIP areas (21.78 ± 3.77 × 10&lt;sup&gt;-3&lt;/sup&gt; mm&lt;sup&gt;2&lt;/sup&gt;/s) compared with SIN areas (16.19 ± 4.58 × 10&lt;sup&gt;-3&lt;/sup&gt; mm&lt;sup&gt;2&lt;/sup&gt;/s) (&lt;i&gt;P&lt;/i&gt; &lt; 0.001). When the optimal cut-off value of 1.11 × 10&lt;sup&gt;-3&lt;/sup&gt; mm&lt;sup&gt;2&lt;/sup&gt;/s was selected, the sensitivity for the D value was 71% and the specificity was 72% [area under the curve (AUC): 0.716)]. When the optimal cut-off value of 21.06 × 10&lt;sup&gt;-3&lt;/sup&gt; mm&lt;sup&gt;2&lt;/sup&gt;/s was selected, the sensitivity for the D* value was 78.6%, and the specificity was 79.3% (AUC: 0.829). The interclass correlation coefficient was excellent for f&lt;sub&gt;1&lt;/sub&gt;, f&lt;sub&gt;2&lt;/sub&gt; D*, D, and ADC&lt;sub&gt;diff&lt;/sub&gt;, good for ADC&lt;sub&gt;low&lt;/sub&gt; and D&lt;sub&gt;1&lt;/sub&gt;, but reasonable for ADC.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Conclusion: &lt;/strong&gt;The presence of synovial inflammation in the SIJ can be evaluated with high sensitivity and specificity using only four b values through the simplified IVIM method without the need for a contrast agent.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Clinical significance: &lt;/strong&gt;IVIM imaging is a technique that allows us to gain insights into tissue perfusion without the administration of contrast agents, utilizing diffusion-weighted images. In this study, for the first time, we demonstrated the potential of detecting synovial inflammation in the SIJ using IVIM, specifically through the pseudodiffusion (D*) parameter, without ","PeriodicalId":11341,"journal":{"name":"Diagnostic and interventional radiology","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141999602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Splenic artery embolization in the treatment of blunt splenic injury: single level 1 trauma center experience.","authors":"Katelyn Gill, Sarah Aleman, Alexandra H Fairchild, Bahri Üstünsöz, Dan Laney, Alison A Smith, Hector Ferral","doi":"10.4274/dir.2024.242789","DOIUrl":"https://doi.org/10.4274/dir.2024.242789","url":null,"abstract":"<p><strong>Purpose: </strong>To describe the experience of a single level 1 trauma center in the management of blunt splenic injuries (BSI).</p><p><strong>Methods: </strong>This is a retrospective study with Institutional Review Board approval. The medical records of 450 patients with BSI treated between January 2016 and December 2022 were reviewed. Seventy-two patients were treated with splenic artery embolization (SAE), met the study criteria, and were eligible for data analysis. Spleen injuries were graded in accordance with the American Association for the Surgery of Trauma Organ Injury Scale. Univariate data analysis was performed, with <i>P</i> < 0.05 considered statistically significant.</p><p><strong>Results: </strong>The splenic salvage rate was 90.3% (n = 65/72). Baseline demographics were similar between the groups (<i>P</i> > 0.05). Distal embolization with Gelfoam^® had similar rates of splenic salvage to proximal embolization with coils (90% vs. 94.1%, <i>P</i> > 0.05). There was no significant difference in the rate of splenic infarction between distal embolization with Gelfoam^® (20%, 4/20) and proximal embolization with coils (17.6%, 3/17) (<i>P</i> > 0.05). There was no significant difference in procedure length (68 vs. 75.8 min) or splenic salvage rate (88.5% vs. 92.1%) between proximal and distal embolization (<i>P</i> > 0.05). There was no significant difference in procedure length (69.1 vs. 73.6 min) or splenic salvage rate (93.1% vs. 86.4%) between Gelfoam^® and coil embolization (<i>P</i> > 0.05). Combined proximal and distal embolization was associated with a higher rate of splenic abscess formation (25%, 2/8) when compared with proximal (0%, 0/26) or distal (0%, 0/38) embolization alone (<i>P</i> = 0.0003). The rate of asymptomatic and symptomatic splenic infarction was significantly higher in patients embolized at combined proximal and distal locations (<i>P</i> = 0.04, <i>P</i> = 0.01).</p><p><strong>Conclusion: </strong>The endovascular management of BSI is safe and effective. The overall splenic salvage rate was 90.3%. Distal embolization with Gelfoam^® was not associated with higher rates of splenic infarction when compared with proximal embolization with coils. Combined proximal and distal embolization was associated with a higher incidence of splenic infarction and splenic abscess formation.</p><p><strong>Clinical significance: </strong>Distal splenic embolization with Gelfoam^® is safe and may be beneficial in the setting of blunt splenic trauma.</p>","PeriodicalId":11341,"journal":{"name":"Diagnostic and interventional radiology","volume":" ","pages":""},"PeriodicalIF":1.4,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141579209","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Survival prediction using apparent diffusion coefficient values in recurrent glioblastoma under bevacizumab treatment: an updated systematic review and meta-analysis","authors":"Dong Liu, Zhangyu Li","doi":"10.4274/dir.2024.232550","DOIUrl":"10.4274/dir.2024.232550","url":null,"abstract":"<p><p>Bevacizumab is a common strategy for the treatment of recurrent glioblastoma. Survival status is a crucial issue for patients with recurrent glioblastoma, and the apparent diffusion coefficient (ADC) values of the lower Gaussian curve have been reported to have the potential to predict prognosis in recurrent glioblastoma. In the present study, we aimed to clarify the survival prediction of ADC values in patients with recurrent glioblastoma receiving bevacizumab treatment through a systematic review and meta-analysis of randomized clinical trials, comparing ADC values higher than the cut-off values with those lower than the cut-off values to determine which type of ADC values can be associated with significant survival benefits. Different survival indicators were analyzed, including overall survival (OS) and progression-free survival (PFS). Ten studies with a total of 782 patients with recurrent glioblastoma were included. The focused outcomes were OS and PFS. Our results showed that ADC values lower than the cut-off values were associated with significant benefits for OS status compared with ADC values higher than the cut-off values. Similar significant benefits were observed for PFS. The meta-analysis results suggest that ADC values lower than the cut-off values might be associated with significant benefits for OS and PFS when compared with ADC values higher than the cut-off values. However, bias in relation to the different stages of recurrent glioblastoma and different types, doses, and regimens of bevacizumab should not be ignored.</p>","PeriodicalId":11341,"journal":{"name":"Diagnostic and interventional radiology","volume":" ","pages":"270-274"},"PeriodicalIF":1.4,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11589514/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139641836","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The temporal and spatial relationship between percutaneous vertebral augmentation and new symptomatic fractures","authors":"Jing Tang, Jin Liu, Zuchao Gu, Yu Zhang, Haosen Yang, Zhenlin Li","doi":"10.4274/dir.2023.221424","DOIUrl":"10.4274/dir.2023.221424","url":null,"abstract":"<p><strong>Purpose: </strong>This study aimed to explore the relationship between the time from percutaneous vertebral augmentation (PVA) until subsequent fracture and the risk of new symptomatic fractures (NSFs) in untreated vertebrae at different distances from \"augmented vertebrae\".</p><p><strong>Methods: </strong>Patients who underwent PVA for the treatment of osteoporotic vertebral compression fractures at the West China Hospital of Sichuan University from May 2014 to April 2019 were retrospectively recruited. Vertebrae not treated during PVA were stratified based on their distance from the nearest augmented vertebra and the time elapsed since PVA. Survival curves were plotted to compare the risk of NSFs in untreated vertebrae at different distances from augmented vertebrae. The Cox proportional hazards model was used to identify risk factors of NSFs in untreated vertebrae.</p><p><strong>Results: </strong>total, 162 patients with 228 NSFs (2.760 vertebrae) were analyzed. More than half of the NSFs (56.6%) occurred within the first year after PVA. Rates and hazard ratios (HRs) of NSFs were higher in vertebrae located one segment away from the augmented vertebrae (21.0%, HR: 3.99, <i>P</i> < 0.001), two segments away (10.6%, HR: 1.97, <i>P</i> = 0.003), or three segments away (10.5%, HR: 2.26, <i>P</i> < 0.001) than in vertebrae located five or more segments away (3.81%, HR: 1.00). Similar results were observed regardless of whether the untreated vertebrae were located in the thoracolumbar junction. In addition to distance, other risk factors of NSFs were the thoracolumbar location of untreated vertebrae, the number of augmented vertebrae, and percutaneous vertebroplasty.</p><p><strong>Conclusion: </strong>The risk of NSFs is greater for untreated vertebrae located closer to augmented vertebrae than for untreated vertebrae further away. This distance dependence occurs mainly within the three segments closest to the augmented vertebra. The risk of NSFs decreases with time after augmentation, and it is also related to the number of augmented vertebrae, the type of augmentation, and whether the untreated vertebrae are thoracolumbar or not.</p>","PeriodicalId":11341,"journal":{"name":"Diagnostic and interventional radiology","volume":" ","pages":"262-269"},"PeriodicalIF":1.4,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11589515/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10332278","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Volumetric segmentation analysis of the levator ani muscle using magnetic resonance imaging in pelvic floor function assessment","authors":"Ayşenur Buz Yaşar, Rüveyde Begüm Yüzok, Emine Dağıstan","doi":"10.4274/dir.2024.232586","DOIUrl":"10.4274/dir.2024.232586","url":null,"abstract":"<p><strong>Purpose: </strong>In this case-control study, we aimed to evaluate how muscle volume affects pelvic floor function by analyzing the levator ani muscle (LAM) using volumetric segmentation in addition to standard magnetic resonance (MR) defecography assessments.</p><p><strong>Methods: </strong>We enrolled 85 patients with varying degrees of pelvic floor dysfunction (PFD) and 85 age- and gender-matched controls in this retrospective study. All patients had MR defecography images, while all controls had pelvic MR images obtained for other reasons. Group comparisons were performed using independent samples t-tests and Mann-Whitney U tests. The receiver operating curve (ROC) was constructed to establish a cut-off value for a normal LAM volume. Interrater reliability was assessed by calculating the intraclass correlation coefficient. A P value of less than 0.05 was considered statistically significant.</p><p><strong>Results: </strong>Volumetric measurements revealed that the control group had higher LAM volumes, and the ROC curve analysis indicated a cut-off value of 38934.3 mm3 with a sensitivity of 0.812 and specificity of 0.8 for PFD assessment using LAM volumetric measurement. Gender did not significantly affect LAM volume in the control group.</p><p><strong>Conclusion: </strong>Alongside the useful structural and functional information acquired from MR defecography images, volumetric analysis, and three-dimensional reconstructions of LAM may help to improve the accuracy of the diagnosis.</p>","PeriodicalId":11341,"journal":{"name":"Diagnostic and interventional radiology","volume":" ","pages":"220-227"},"PeriodicalIF":1.4,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11589512/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139905260","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}