Abdominal Radiology最新文献

{"title":"Visibility of mpMRI region of interest on ultrasound during cognitive fusion targeted biopsy predicts prostate cancer detection: a prospective single-center study.","authors":"Fei Qin, Zhijian Liu, Jianguo Ma, Jingyun Wu, Qi Shen, Yi Liu, Xuesong Li","doi":"10.1007/s00261-024-04750-6","DOIUrl":"https://doi.org/10.1007/s00261-024-04750-6","url":null,"abstract":"<p><strong>Purpose: </strong>The purpose of this study was to evaluate the nature of ultrasound characteristics during mpMRI/TRUS cognitive fusion targeted biopsy (cTB).</p><p><strong>Methods: </strong>From 2023 to 2024, data from 502 lesions in 426 men who underwent targeted combined systematic biopsy were analyzed. All lesions had a Prostate Imaging Reporting and Data System (PI-RADS) score of ≥ 3. The primary endpoint was the detection rate of prostate cancer (PCa) according to the PI-RADS score/ultrasound characteristics, categorized as benign or invisible (Bi), hypoechoic only (Ho), and hypoechoic with microcalcification (Hm), assessed through cross-stratification. The secondary endpoints included the distribution of ultrasound characteristics across PI-RADS scores, prostate zones, and histological types. Finally, associations between ultrasound characteristics and clinically significant PCa (csPCa) were assessed using multivariate logistic regression analysis (MVA).</p><p><strong>Results: </strong>Among lesions, 233 (46%) were Bi, 210 (42%) Ho, and 59 (12%) Hm. First, Bi lesions had a 64% (103/161) non-cancer rate in PI-RADS 3, while Ho + Hm lesions showed the highest csPCa rate in PI-RADS 5 at 82% (102/124). Additionally, Ho + Hm lesions were predominantly observed in PI-RADS 5 (92% [114/124]) and in the peripheral zone (64% [179/278]). Notably, Hm lesions had a significantly higher percentage of cribriform morphology than Ho lesions (32% vs. 14%, P = 0.001). Finally, MVA confirmed Ho ([Ref Bi] OR 4.95, P < 0.001) and Hm ([Ref Bi] OR 27.7, P < 0.001) as independent predictors of csPCa.</p><p><strong>Conclusion: </strong>In cTB, the identification of Ho and Hm lesions on TRUS enhances the diagnostic yield of csPCa by facilitating more precise localization compared to Bi lesions.</p><p><strong>Clinical trial registration: </strong>No. 2023-272-002, July 14, 2023.</p>","PeriodicalId":7126,"journal":{"name":"Abdominal Radiology","volume":" ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142875878","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Adnexal masses: a compendium of established radiological signs.","authors":"Priyanka Prajapati, Nabih Nakrour, Anuradha S Shenoy-Bhangle, Dheeman Futela, Mukesh G Harisinghani","doi":"10.1007/s00261-024-04669-y","DOIUrl":"https://doi.org/10.1007/s00261-024-04669-y","url":null,"abstract":"<p><p>Adnexal masses are frequently encountered in general practice. Whether employing CT, US, or MRI, imaging plays a pivotal role in guiding appropriate treatment for patients with adnexal masses, potentially minimizing the need for surgery in benign cases and expediting the management of those with suspected malignancy. Accurately distinguishing benign from malignant adnexal masses can be challenging due to the confined pelvic space and the proximity of organs, making it difficult to determine their organ of origin or to distinguish tissue characteristics and imaging features. Radiologists have identified a myriad of classic adnexal imaging signs that are pathognomonic of certain diagnoses. Often named analogously to familiar objects, such as the \"boba sign,\" familiarity with these signs can contribute to an accurate diagnosis, avoiding additional imaging tests. This pictorial review is a compendium of known radiological signs of adnexal pathologies, reiterating their role in making an accurate diagnosis, and guiding the next steps in management.</p>","PeriodicalId":7126,"journal":{"name":"Abdominal Radiology","volume":" ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142875871","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Size threshold as a risk for malignant transformation in typical ovarian dermoid lesions: a scoping review.","authors":"Haidey Jordan, Gavin Low, Mitchell P Wilson","doi":"10.1007/s00261-024-04751-5","DOIUrl":"https://doi.org/10.1007/s00261-024-04751-5","url":null,"abstract":"<p><strong>Purpose: </strong>The O-RADS malignancy risk stratification of typical ovarian dermoid cysts by using a 10 cm threshold is based on expert consensus rather than analysis of objective clinical data. This comprehensive scoping review consolidated all currently available studies evaluating typical benign ovarian dermoid cyst size and risk for malignant transformation.</p><p><strong>Methods: </strong>A systematic review of MEDLINE, Embase, Scopus and the Cochrane library was performed from inception to January 14, 2024, using PRISMA-ScR guidelines. A grey literature search and forward searching of reference lists from included studies were performed. Case reports and case series evaluating dermoid cyst size and malignant transformation as defined by a pathological reference standard were included. Data synthesis was provided as a qualitative review of the existing literature.</p><p><strong>Results: </strong>Twenty-five studies were included in qualitative synthesis comprising 6 case reports and 19 retrospective studies with a total of 15,295 dermoid cysts. Of these, 215 lesions demonstrated malignant transformation. Studies reporting dermoid size with malignant transformation ranged from 1 to 32 cm with 46/173 (27%) total malignant transformation lesions measuring < 10 cm. Solid enhancing components were infrequently reported but all measured > 1 cm when described.</p><p><strong>Conclusion: </strong>More than 25% of dermoid cysts with malignant transformation may be classified as \"almost certainly benign\" with the current 10 cm O-RADS malignancy risk threshold. Although surveillance of O-RADS 2 dermoid cysts may improve sensitivity, modifying a caveat recommendation for MRI O-RADS +/- gyn-oncologist referral when potentially solid components are present in otherwise typically benign dermoid cysts may be appropriate.</p>","PeriodicalId":7126,"journal":{"name":"Abdominal Radiology","volume":" ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142871048","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Image quality assessment of artificial intelligence iterative reconstruction for low dose unenhanced abdomen: comparison with hybrid iterative reconstruction.","authors":"Hui Qi, Dingye Cui, Shijie Xu, Wei Li, Qingshi Zeng","doi":"10.1007/s00261-024-04760-4","DOIUrl":"https://doi.org/10.1007/s00261-024-04760-4","url":null,"abstract":"<p><strong>Objectives: </strong>To assess the impact of artificial intelligence iterative reconstruction algorithms (AIIR) on image quality with phantom and clinical studies.</p><p><strong>Methods: </strong>The phantom images were reconstructed with the hybrid iterative algorithm (HIR: Karl 3D-3, 5, 7, 9) and AIIR (grades 1-5) algorithm. Noise power spectra (NPS), task transfer functions (TTF) were measured, and additionally sharpness was assessed using a \"blur metric\" procedure. Sixty-two consecutive patients underwent standard-dose and low-dose unenhanced abdominal computed tomography (CT) scans, i.e., SDCT and LDCT groups, respectively. The SDCT images reconstructed using the Karl 3D-5, and the LDCT images reconstructed using the Karl 3D-5 and the AIIR-3 and 5, respectively. CT values, standard deviation (SD), signal-to-noise ratio (SNR), and contrast-to-noise ratio (CNR) were assessed for hepatic parenchyma and paravertebral muscles. Images were independently evaluated by two radiologists for image-quality, noise, sharpness, and lesion diagnostic confidence.</p><p><strong>Results: </strong>In the phantom study, AIIR algorithm provided higher TTF_50% and NPS average spatial frequency compared to HIR. In the clinical study, there was no statistically significant difference in CT values among the four reconstruction images (p > 0.05). The LDCT group AIIR-3 obtained the lowest SD values and the highest mean CNR and SNR values compared to the other three groups (p < 0.05). For qualitative assessment, the image subjective characteristic scores of AIIR-5 in the LDCT group, compared with the SDCT group, were not statistically significant (p > 0.05).</p><p><strong>Conclusions: </strong>AIIR reduces radiation dose levels by approximately 78% and still maintains the image quality of unenhanced abdominal CT compared to HIR with SDCT.</p><p><strong>The trial registration number: </strong>NCT06142539.</p>","PeriodicalId":7126,"journal":{"name":"Abdominal Radiology","volume":" ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142871047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessment of hemodynamic changes in gastric varices using CT findings before and after vascular plug-assisted retrograde transvenous obliteration (PARTO) and evaluation of treatment outcomes.","authors":"Dong Kyu Lee, Jung Won Kwak, Sung Bum Cho","doi":"10.1007/s00261-024-04777-9","DOIUrl":"https://doi.org/10.1007/s00261-024-04777-9","url":null,"abstract":"<p><strong>Purpose: </strong>To assess the treatment outcomes of vascular plug-assisted retrograde transvenous obliteration (PARTO) for gastric varices based on hemodynamic changes observed in pre- and post-procedural CT scans.</p><p><strong>Methods: </strong>This single-center study included 43 patients with gastric varices who underwent PARTO between June 2017 and December 2023. Peri-procedural CT and endoscopic findings were retrospectively reviewed to analyze the afferent and draining veins of gastric varices, identify any residual varices or afferent veins after treatment, assess the technical and clinical successes, and determine statistically significant variables associated with clinical success.</p><p><strong>Results: </strong>In the pre-procedural CT, the most common dominant afferent vein was the posterior gastric vein (81.4%), followed by the short gastric vein (46.5%) and the left gastric vein (37.2%). Post-procedural CT scans were available for 34 patients (34/43), revealing residual varices and afferent veins in 10 patients (10/34). Seven patients had unknown clinical outcomes due to insufficient follow-up data. The technical and clinical success rates were 93.0% (40/43) and 77.8% (28/36), respectively. In the multivariable logistic regression model, the dominant left gastric vein observed in the pre-procedural CT was a significant negative predictor of clinical success (odds ratio, 0.007; P = 0.027). The sum of the diameters of all afferent veins was also a significant negative predictor (odds ratio, 0.708; P = 0.044).</p><p><strong>Conclusion: </strong>A dominant left gastric vein and a larger sum of the diameters of all afferent veins observed in the pre-procedural CT may be associated with an increased risk of clinical failure of PARTO. Therefore, pretherapeutic CT evaluation of the hemodynamics of gastric varices, particularly the type, dominance, and diameter of the afferent veins, could be beneficial for achieving successful PARTO.</p>","PeriodicalId":7126,"journal":{"name":"Abdominal Radiology","volume":" ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142871046","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"PSMA-RADS to improve evaluation and management of prostate cancer.","authors":"Niloufar Rafiei Alavi, Maryam Rahmani, Arti Gupta, Vahid Yaghmai","doi":"10.1007/s00261-024-04738-2","DOIUrl":"https://doi.org/10.1007/s00261-024-04738-2","url":null,"abstract":"<p><p>Prostate-Specific Membrane Antigen (PSMA) positron emission tomography (PET) / computed tomography (CT) has become essential in managing prostate cancer, offering superior diagnostic accuracy. The introduction of the U.S. Food and Drug Administration (FDA)-approved theranostic agent (¹⁷⁷Lutetium-PSMA-617) has further enhanced the significance of PSMA PET/CT imaging. Despite its benefits, PSMA-PET/CT is not without challenges, as PSMA expression is not exclusive to prostate cancer cells. Therefore, standardized interpretation criteria are necessary for consistent and reliable communication among physicians. The PSMA- reporting and data system (RADS) provides a structured approach for assessing PSMA-PET/CT scans. Updated in 2023, PSMA-RADS 2.0 addresses previous limitations and introduces a new category, PSMA-RADS 5T, for treated metastases. This system categorizes lesions based on their likelihood of prostate cancer involvement, improving longitudinal monitoring and guiding management strategies. By familiarizing radiologists with PSMA-RADS through case-based reviews, this primer aims to enhance diagnostic accuracy and treatment planning for patients with prostate cancer.</p>","PeriodicalId":7126,"journal":{"name":"Abdominal Radiology","volume":" ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142863014","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Genetic syndromes associated with pancreatic neuroendocrine neoplasms and imaging diagnostic strategies.","authors":"Jiawei Liu, Jian Ling, Lujie Li, Yuxin Wu, Chenyu Song, Siya Shi, Zhi Dong, Jifei Wang, Mimi Tang, Shi-Ting Feng, Yanji Luo, Danyang Xu","doi":"10.1007/s00261-024-04764-0","DOIUrl":"https://doi.org/10.1007/s00261-024-04764-0","url":null,"abstract":"<p><p>Pancreatic neuroendocrine neoplasms (pNENs) are the second most common pancreatic malignancy. While most cases are sporadic, a small proportion is associated with genetic syndromes, such as Multiple Endocrine Neoplasia (MEN), Von Hippel-Lindau Syndrome (VHL), Neurofibromatosis Type 1 (NF1), and Tuberous Sclerosis Complex (TSC). This review aims to use pNENs as a clue to reveal the full spectrum of disease, providing a comprehensive understanding of diagnosis. It aids in promptly identifying abnormalities in other organs, recognizing familial genetic mutations, and achieving personalized treatment.</p>","PeriodicalId":7126,"journal":{"name":"Abdominal Radiology","volume":" ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142852077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Corrigendum to \"Computed tomography-based prediction model for identifying patients with high probability of non-muscle-invasive bladder cancer\" [Abdominal Radiology (2024) 49:163-172.].","authors":"Sung Yoon Park","doi":"10.1007/s00261-024-04763-1","DOIUrl":"https://doi.org/10.1007/s00261-024-04763-1","url":null,"abstract":"","PeriodicalId":7126,"journal":{"name":"Abdominal Radiology","volume":" ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142863011","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Does amide proton transfer-weighted MRI have diagnostic and differential value in ovarian cystic and predominantly cystic lesion?","authors":"Dawei Ding, Lingyu Chang, Chunyan Men, Bo Yang, Dmytro Pylypenko, Tao Zhang, Dexin Yu, Fang Wang","doi":"10.1007/s00261-024-04768-w","DOIUrl":"https://doi.org/10.1007/s00261-024-04768-w","url":null,"abstract":"<p><strong>Objectives: </strong>This study aims to evaluate the diagnostic value of amide proton transfer-weighted (APTw) imaging in distinguishing cystic or predominantly cystic ovarian lesions.</p><p><strong>Materials and methods: </strong>49 patients underwent APTw imaging at 3T-MR before surgery, with 20 volunteers serving as the control group. Participants were divided into the following groups: solid components of normal ovaries (Group A, n = 29), solid components of malignant lesions (Group B, n = 7), cystic fluid of follicles (Group C, n = 31), cystic fluid of benign lesions (Group D, n = 46), functional cysts (Group d1, n = 8), endometriomas (Group d2, n = 28), cystadenomas (Group d3, n = 10), and cystic fluid of malignant lesions (Group E, n = 12). Independent t-tests or Mann-Whitney U tests and one-way ANOVA were used to compare group differences. Receiver operating characteristic (ROC) analysis was used to evaluate the diagnostic efficacy in distinguishing between different lesions.</p><p><strong>Results: </strong>For solid components, significant differences in MTRasym values were observed between Groups A and B (P < 0.001). For cystic components, significant differences were found between Groups C and D, C and E, d1 and d2, d2 and d3, d1 and d3, C and d2, C and d3, E and d1, and E and d2 (all P < 0.01). ROC analysis of these results showed high AUC values (ranging from 0.813 to 1.0), all P < 0.05.</p><p><strong>Conclusions: </strong>APTw can reveal differences in MTRasym values between normal and diseased ovarian tissues, demonstrating high clinical value in differentiating functional cysts, endometriomas, and cystadenomas, as well as distinguishing benign lesions (functional cysts or endometriomas) from malignant tumors.</p>","PeriodicalId":7126,"journal":{"name":"Abdominal Radiology","volume":" ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142852074","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"International perspectives on LI-RADS.","authors":"Andrea S Kierans, Diego A Aguirre, Sonal Krishan, Jeong Min Lee, Maxime Ronot, Jin Wang, Elizabeth M Hecht","doi":"10.1007/s00261-024-04729-3","DOIUrl":"https://doi.org/10.1007/s00261-024-04729-3","url":null,"abstract":"<p><p>Given the crucial role of imaging in HCC diagnosis, LI-RADS CT/MRI was developed to standardize the imaging interpretation and reporting of HCC in patients at risk for HCC and categorize hepatic observations on an ordinal scale according to the likelihood of HCC. LI-RADS has since been expanded to include 5 algorithms: LI-RADS US Surveillance, contrast-enhanced US (CEUS) LI-RADS, LI-RADS CT/MRI, and LI-RADS Treatment Response Assessment. LI-RADS has been adopted broadly in North America, however with less ubiquitous adoption outside of North America. Further elucidation of the perceived strengths and weakness of the LI-RADS algorithm, as it pertains to various geographic regions, will continue to inform a future system that may be more readily adopted globally. Therefore, the aim of this article is to summarize HCC risk factors and imaging guidelines in select geographically disparate regions, and to solicit feedback from liver imaging experts on the limitations and barriers to adoption of LI-RADS algorithms in their patient populations.</p>","PeriodicalId":7126,"journal":{"name":"Abdominal Radiology","volume":" ","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142852083","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}