Diagnostic and Interventional Radiology最新文献

{"title":"Adherence to ALARA principle in the era of COVID-19 pandemic.","authors":"Halit Nahit Şendur","doi":"10.5152/dir.2020.20393","DOIUrl":"https://doi.org/10.5152/dir.2020.20393","url":null,"abstract":"The coronavirus disease 2019 (COVID-19) outbreak impacted healthcare applications in an unprecedented way. ALARA (as low as reasonably achievable) principle is strongly endorsed in the radiology community to protect patients from potential harms of radiation. Depending on several CT applications related to COVID-19 outbreak, the adherence to this vital principle seems questionable in these days. Globally documented COVID-19 cases approximate 5 million, and the number of people undergoing CT examinations is increasing continually. Moreover, if this outbreak did not occur, probably CT would not be performed to the majority of these patients in this time period. This indicates that more number of individuals than expected are exposed to radiation dose from medical imaging applications because of this outbreak. predictive value prolonged turnaround times RT-PCR uti-lization CT of containment the Ding 8 CT scans for individuals (average, in lungs 3 CT scans number of","PeriodicalId":50582,"journal":{"name":"Diagnostic and Interventional Radiology","volume":" ","pages":"153"},"PeriodicalIF":2.1,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.5152/dir.2020.20393","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38166227","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":"Feasibility and mid- to long-term results of endovascular treatment for portal vein thrombosis after living-donor liver transplantation.","authors":"Koji Tokunaga,&nbsp;Akihiro Furuta,&nbsp;Hiroyoshi Isoda,&nbsp;Shinji Uemoto,&nbsp;Kaori Togashi","doi":"10.5152/dir.2020.19469","DOIUrl":"https://doi.org/10.5152/dir.2020.19469","url":null,"abstract":"<p><strong>Purpose: </strong>We aimed to evaluate mid- to long-term results of endovascular treatment for portal vein thrombosis (PVT) after living-donor liver transplantation (LDLT).</p><p><strong>Methods: </strong>Thirty cases (14 males, 16 females; age range, 0.67-65 years) who underwent endovascular treatment including thrombolysis, angioplasty, stent placement, and/or collateral embolization for PVT after LDLT from 2001 to 2017 were retrospectively reviewed. Clinical and procedural data were collected and analyzed regarding the patency of the PVT site at the last follow-up date (PVT-free persistency) using Log-rank test. Results were considered statistically significant at P < 0.05.</p><p><strong>Results: </strong>Median follow-up was 120 months. The technical success rate was 80% (n=24). Patency rates at 1 week and 1, 3, 6, 12, 36, and 60 months were 73%, 59%, 55%, 51%, 51%, 51%, and 51% for primary patency and 80%, 70%, 66%, 66%, 66%, 61%, and 61% for assisted patency after secondary endovascular treatment. PVT-free persistency rates regarding the subgroups were as follows: children under 12 years vs. adults, 50% vs. 68% (P = 0.42); acute vs. nonacute, 76% vs. 46% (P = 0.10); localized vs. extensive, 90% vs. 50% (P = 0.035); transileocolic approach vs. percutaneous-transhepatic approach, 71% vs. 54% (P = 0.39); and thrombolysis-based treatment vs. non-thrombolysis-based treatment, 71% vs. 44% (P = 0.12), respectively. Among technically successful cases, PVT-free persistency rate was 94% for those with hepatopetal flow in the peripheral portal vein vs. 17% for those without hepatopetal flow (P < 0.001). The only major complication occurring was pleural hemorrhage (n=1). Minor complications (i.e., fever) occurred in 18 patients (60%).</p><p><strong>Conclusion: </strong>In conclusion, mid- to long-term portal patency following endovascular treatment was approximately 50%-60% in PVT patients after LDLT. PVT site patency over three months after the first endovascular treatment, localized PVT, and hepatopetal flow in the peripheral portal vein were identified as key prognostic factors for mid- to long-term portal patency.</p>","PeriodicalId":50582,"journal":{"name":"Diagnostic and Interventional Radiology","volume":" ","pages":"65-71"},"PeriodicalIF":2.1,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7837713/pdf/dir-27-1-65.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38313921","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":"Gianturco Z-stent placement for the treatment of chronic central venous occlusive disease: implantation of 208 stents in 137 symptomatic patients.","authors":"Joseph L McDevitt,&nbsp;Daryl T Goldman,&nbsp;Jacob J Bundy,&nbsp;Anthony N Hage,&nbsp;Neil K Jairath,&nbsp;Joseph J Gemmete,&nbsp;Ravi N Srinivasa,&nbsp;Jeffrey Forris Beecham Chick","doi":"10.5152/dir.2020.19282","DOIUrl":"https://doi.org/10.5152/dir.2020.19282","url":null,"abstract":"<p><strong>Purpose: </strong>To report the technical successes, adverse events, and long-term stent patency rates of Gianturco Z-stents for management of chronic central venous occlusive disease.</p><p><strong>Methods: </strong>Overall, 137 patients, with mean age 48.6±16.1 years (range, 16-89 years), underwent placement of Gianturco Z-stents for chronic central venous occlusions. Presenting symptoms included lower extremity edema (n=66, 48.2%), superior vena cava syndrome (n=30, 21.9%), unilateral upper extremity swelling (n=20, 14.6%), hemodialysis fistula or catheter dysfunction (n=11, 8.0%), ascites (n=8, 5.8%), and both ascites and lower extremity edema (n=2, 1.5%). Most common etiologies of central venous occlusion were prior central venous access placement (n=58, 42.3%), extrinsic compression (n=29, 21.2%), and post-surgical anastomotic stenosis (n=27, 19.7%). Number of stents placed, stent implantation location, stent sizes, technical successes, adverse events, need for re-intervention, follow-up evaluation, stent patencies, and mortality were recorded. Technical success was defined as recanalization and stent reconstruction with restoration of in-line venous flow. Adverse events were defined by the Society of Interventional Radiology Adverse Event Classification criteria. Primary and primary-assisted stent patencies were analyzed using Kaplan-Meier analysis.</p><p><strong>Results: </strong>In total, 208 Z-stents were placed. The three most common placement sites were the inferior vena cava (n=124, 59.6%), superior vena cava (n=44, 21.2%), and brachiocephalic veins (n=27, 13.0%). Technical success was achieved in 133 patients (97.1%). There were two (1.5%) severe adverse events (two cases of stent migration to the right atrium), one (0.7%) moderate adverse event, and one (0.7%) mild adverse event. Mean follow-up was 43.6±52.7 months. Estimated 1-, 3-, and 5-year primary stent patency was 84.2%, 84.2%, and 82.1%, respectively. Estimated 1-, 3-, and 5-year primary-assisted patency was 92.3%, 89.6%, and 89.6%, respectively. The 30- and 60- day mortality rates were 2.9% (n=4) and 5.1% (n=7), none of which were directly attributable to Z-stent placement.</p><p><strong>Conclusion: </strong>Gianturco Z-stent placement is safe and effective for the treatment for chronic central venous occlusive disease with durable short- and long-term patencies.</p>","PeriodicalId":50582,"journal":{"name":"Diagnostic and Interventional Radiology","volume":" ","pages":"72-78"},"PeriodicalIF":2.1,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.5152/dir.2020.19282","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38518208","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":"Evaluation of prostate volume in mpMRI: comparison of the recommendations of PI-RADS v2 and PI-RADS v2.1.","authors":"Elif Gündoğdu,&nbsp;Emre Emekli","doi":"10.5152/dir.2020.20023","DOIUrl":"https://doi.org/10.5152/dir.2020.20023","url":null,"abstract":"<p><strong>Purpose: </strong>We aimed to evaluate the prostate volumes calculated as recommended in the PI-RADS v2 and PI-RADS v2.1 guidelines, intraobserver and interobserver variability, and the agreement between the two measurement methods.</p><p><strong>Methods: </strong>Prostate mpMRI examinations of 114 patients were evaluated retrospectively. T2-weighted sequences in the axial and sagittal planes were used for the measurement of the prostate volume. The measurements were performed by two independent observers as recommended in the PI-RADS v2 and PI-RADS v2.1 guidelines. Both observers conducted the measurements twice and the average values were obtained. In order to prevent bias, the observers carried out measurements at one-week intervals. In order to assess intraobserver variability, observers repeated the measurements again at one-week intervals. The prostate volume was calculated using the ellipsoid formula (W×H×L×0.52).</p><p><strong>Results: </strong>Intraclass correlation coefficient (ICC) revealed almost perfect agreement between the first and second observers for the measurements according to both PI-RADS v2 (0.93) and PI-RADS v2.1 (0.96) guidelines. The measurements were repeated by both observers. According to the ICC values, there was excellent agreement between the first and second measurements with respect to both PI-RADS v2 and PI-RADS v2.1 for first (0.94 and 0.96, respectively) and second observer (0.94 and 0.97, respectively). For both observers, the differences had a random, homogeneous distribution, and there was no clear relationship between the differences and mean values.</p><p><strong>Conclusion: </strong>The ellipsoid formula is a reliable method for rapid assessment of prostate volume, with excellent intra- and interobserver agreement and no need for expert training. For the height measurement, the recommendations of the PIRADS v2.1 guideline seem to provide more consistently reproducible results.</p>","PeriodicalId":50582,"journal":{"name":"Diagnostic and Interventional Radiology","volume":" ","pages":"15-19"},"PeriodicalIF":2.1,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.5152/dir.2020.20023","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38313922","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":"Technique and clinical applications of dual-energy contrast-enhanced digital mammography (CEDM) in breast cancer evaluation: a pictorial essay.","authors":"Rashmi Sudhir,&nbsp;Veeraiah Koppula,&nbsp;Anitha Mandava,&nbsp;Sannapareddy Kamala,&nbsp;Alekya Potlapalli","doi":"10.5152/dir.2020.19573","DOIUrl":"https://doi.org/10.5152/dir.2020.19573","url":null,"abstract":"<p><p>This pictorial essay illustrates an overview of the basic technique used in acquiring dual-energy contrast-enhanced digital mammography (CEDM) images and its potential clinical applications in regular practice. CEDM may be used as a low-cost alternative to magnetic resonance imaging (MRI), as a problem-solving tool in clinical practice and for therapeutic planning of breast cancer, which may include high-risk screening, dense breast evaluation, mammographically equivocal lesions, local staging, treatment response evaluation, and post treatment follow-up. We share our experience of CEDM at a tertiary care cancer hospital.</p>","PeriodicalId":50582,"journal":{"name":"Diagnostic and Interventional Radiology","volume":" ","pages":"28-36"},"PeriodicalIF":2.1,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7837723/pdf/dir-27-1-28.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38313918","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":"Computational evaluation of inferior vena cava filters through computational fluid dynamics methods.","authors":"Anand Rajan,&nbsp;Mina S Makary,&nbsp;Thomas D Martyn,&nbsp;Joshua D Dowell","doi":"10.5152/dir.2020.19435","DOIUrl":"https://doi.org/10.5152/dir.2020.19435","url":null,"abstract":"<p><p>Numerical simulation is growing in its importance toward the design, testing and evaluation of medical devices. Computational fluid dynamics and finite element analysis allow improved calculation of stress, heat transfer, and flow to better understand the medical device environment. Current research focuses not only on improving medical devices, but also on improving the computational tools themselves. As methods and computer technology allow for faster simulation times, iterations and trials can be performed faster to collect more data. Given the adverse events associated with long-term inferior vena cava (IVC) filter placement, IVC filter design and device evaluation are of paramount importance. This work reviews computational methods used to develop, test, and improve IVC filters to ultimately serve the needs of the patient.</p>","PeriodicalId":50582,"journal":{"name":"Diagnostic and Interventional Radiology","volume":" ","pages":"116-121"},"PeriodicalIF":2.1,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.5152/dir.2020.19435","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38664567","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":"Model-based iterative reconstruction for 320-detector row CT angiography reduces radiation exposure in infants with complex congenital heart disease.","authors":"Yuzo Yamasaki,&nbsp;Takeshi Kamitani,&nbsp;Koji Sagiyama,&nbsp;Yuko Matsuura,&nbsp;Tomoyuki Hida,&nbsp;Hazumu Nagata","doi":"10.5152/dir.2020.19633","DOIUrl":"https://doi.org/10.5152/dir.2020.19633","url":null,"abstract":"<p><strong>Purpose: </strong>We investigated the impact of model-based iterative reconstruction (MBIR) on 320-detector row computed tomography angiography (CTA) in infants with complex congenital heart disease (CHD).</p><p><strong>Methods: </strong>Seventy infants with complex CHD who underwent 320-detector row CTA (40 boys and 30 girls; age range, 0-22 months; median age, 60 days) were retrospectively evaluated. First, the images were reconstructed by filtered back projection (FBP), hybrid iterative reconstruction (HIR), or MBIR in 20 cases, and variables were compared among the three iterative reconstruction methods (IR test). Second, the variables were compared between 25 cases scanned using HIR and 25 cases scanned using MBIR, with a 20 standard deviation noise level for both. Attenuation values and contrast-to-noise ratios (CNRs) of the great vessels and heart chambers were calculated. Total dose-length products were recorded for all patients (radiation dose: RD test).</p><p><strong>Results: </strong>In the IR test, the mean CNR values were 4.8±1.3 for FBP, 6.9±1.4 for HIR, and 8.2±1.7 for MBIR (P < 0.0001). The best subjective image qualities in the great vessels and heart chambers were obtained with MBIR. In RD testing, no significant differences between HIR and MBIR in image quality (CNR: HIR, 8.4±2.4; MBIR, 8.3±2.4) were observed. The effective dose was significantly lower for MBIR than for HIR (0.7±0.2 vs. 1.1±0.3 mSv; P < 0.001).</p><p><strong>Conclusion: </strong>The MBIR algorithm significantly improved image quality and decreased radiation exposure in 320-row CTA of infants with complex CHD, providing an alternative to FBP or HIR that is both safer and produces better results.</p>","PeriodicalId":50582,"journal":{"name":"Diagnostic and Interventional Radiology","volume":" ","pages":"42-49"},"PeriodicalIF":2.1,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7837718/pdf/dir-27-1-42.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38689645","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":"Value of contrast-enhanced CT based radiomic machine learning algorithm in differentiating gastrointestinal stromal tumors with KIT exon 11 mutation: a two-center study.","authors":"Bo Liu, He-xiang Wang, Shunli Liu, Shifeng Yang, Yancheng Song, Hao Liu, Ziwen Zheng, Junjiang Zhao, F. Hou, Xuelong Jiao, Jian Zhang","doi":"10.21203/rs.3.rs-48361/v1","DOIUrl":"https://doi.org/10.21203/rs.3.rs-48361/v1","url":null,"abstract":"PURPOSE Knowing the genetic phenotype of gastrointestinal stromal tumors (GISTs) is essential for patients who receive therapy with tyrosine kinase inhibitors. The aim of this study was to develop a radiomic algorithm for predicting GISTs with KIT exon 11 mutation. METHODS We enrolled 106 patients (80 in the training set, 26 in the validation set) with clinicopathologically confirmed GISTs from two centers. Preoperative and postoperative clinical characteristics were selected and analyzed to construct the clinical model. Arterial phase, venous phase, delayed phase, and tri-phase combined radiomics algorithms were generated from the training set based on contrast-enhanced computed tomography (CE-CT) images. Various radiomics feature selection methods were used, namely least absolute shrinkage and selection operator (LASSO); minimum redundancy maximum relevance (mRMR); and generalized linear model (GLM) as a machine-learning classifier. Independent predictive factors were determined to construct preoperative and postoperative radiomics nomograms by multivariate logistic regression analysis. The performances of the clinical model, radiomics algorithm, and radiomics nomogram in distinguishing GISTs with the KIT exon 11 mutation were evaluated by area under the curve (AUC) of the receiver operating characteristics. RESULTS Of 106 patients who underwent genetic analysis, 61 had the KIT exon 11 mutation. The combined radiomics algorithm was found to be the best prediction model for differentiating the expression status of the KIT exon 11 mutation (AUC = 0.836; 95% confidence interval [CI], 0.640-0.951) in the validation set. The clinical model, and preoperative and postoperative radiomics nomograms had AUCs of 0.606 (95% CI, 0.397-0.790), 0.715 (95% CI, 0.506-0.873), and 0.679 (95% CI, 0.468-0.847), respectively, with the validation set. CONCLUSION The radiomics algorithm could distinguish GISTs with the KIT exon 11 mutation based on CE-CT images and could potentially be used for selective genetic analysis to support the precision medicine of GISTs.","PeriodicalId":50582,"journal":{"name":"Diagnostic and Interventional Radiology","volume":"28 1 1","pages":"29-38"},"PeriodicalIF":2.1,"publicationDate":"2020-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49545284","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":"Assessment of the compliance with minimum acceptable technical parameters proposed by PI-RADS v2 guidelines in multiparametric prostate MRI acquisition in tertiary referral hospitals in the Republic of Turkey.","authors":"M. Coşkun, A. Sarp, Ş. Karasu, M. Gelal, Barış Türkbey","doi":"10.5152/DIR.2019.18537","DOIUrl":"https://doi.org/10.5152/DIR.2019.18537","url":null,"abstract":"PURPOSE\u0000Although the clinical use of multiparametric prostate magnetic resonance imaging (mpMRI) is increasing, the adherence to parameters for mpMRI which had been described in the Prostate Imaging-Reporting and Data System version 2 (PI-RADSv2) for an optimum image acquisition is unknown. In this paper, we aimed to determine the compliance with the minimum acceptable technical parameters for prostate mpMRI defined by PI-RADSv2 in tertiary care centers in Turkey.\u0000\u0000\u0000METHODS\u0000We sent a survey to all radiology departments of tertiary referral hospitals in Turkey (n = 120) to evaluate their adherence to PI-RADSv2 technical specifications. Statistical analysis was performed using Chi-square, Fisher Exact, ANOVA, and the Student`s t tests. The cut-off values for image acquisition times were also determined with ROC analysis. P - values <0.05 were considered statistically significant.\u0000\u0000\u0000RESULTS\u0000One hundred and eleven clinics responded to our survey (response rate = 92.5%). Prostate MRI was reported to be performed in 61 centers. 26 (42.6%) centers used 3 T (Tesla) scanner while 1.5T was used in 35 (57.4%) centers. The adherence to slice thickness (ST), in-plane phase and frequency resolutions on T2WI were 68.9%, 41% and 9.8% respectively. The adherence to the same parameters on DWI were higher compared to T2WI (85.2%, 62.3% and 78.7%, respectively). In comparative analysis, the adherence to ST, field of view (FOV) and in-plane phase resolution on T2WI were higher for 3T compared with 1.5T scanners (P = 0.004, P = 0.041 and P = 0.001, respectively). T2WI acquisition time was significantly longer for the centers adhered to T2WI-FOV (P = 0.034) and in-plane T2WI phase resolution (P = 0.028). The DWI scan time was significantly longer when they adhered to DWI-FOV (P = 0.014) and b-value≥1400s/mm2 (P = 0.008). The calculated cut-off values were 220 seconds in T2WI and 312 seconds in DWI to ensure the compliance with voxel sizes and b-value criterias.\u0000\u0000\u0000CONCLUSION\u0000The tertiary referral centers in Turkey did not meet most of the technical specifications of PI-RADSv2 during prostate MRI acquisition. Awareness to the minimum acceptable technical parameters of mpMRI should be increased to potentially improve the quality of prostate cancer imaging.","PeriodicalId":50582,"journal":{"name":"Diagnostic and Interventional Radiology","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2020-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.5152/DIR.2019.18537","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46407205","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":"Percutaneous drainage of retroperitoneal abscesses: variables for success, failure, and recurrence.","authors":"O. Akhan, H. Durmaz, S. Balci, E. Birgi, T. Ciftci, D. Akıncı","doi":"10.5152/dir.2020.19199","DOIUrl":"https://doi.org/10.5152/dir.2020.19199","url":null,"abstract":"PURPOSE We aimed to evaluate the success and failure rates and minor and major complications of percutaneous drainage of retroperitoneal abscesses. METHODS Between 1990 and 2010, percutaneously drained 170 retroperitoneal abscesses in 150 patients (83 males, 67 females, median age 44.2 years, age range, 1-86 years) were included retrospectively. Percutaneous drainage of retroperitoneal abscesses was performed under the guidance of ultrasonography and fluoroscopy or computed tomography. Six abscesses were drained via single needle aspiration whereas 164 abscesses were drained via catheters of 6-14 F calibre using the Seldinger technique. RESULTS When all retroperitoneal abscesses are considered, success rates were found as follows: 75.3% cure (128/170), 7.7% temporization (13/170), 4.1% palliation (7/170). Failure rate was 12.9% (22/170). Recurrence rate was 10.6% (18/170), and 13 of the recurred abscesses were treated via second session percutaneous drainage. Mortality rate was 2.7% (4/150). CONCLUSION Percutaneous drainage is the first treatment option for retroperitoneal abscesses due to procedural reliability, elimination of need for general anesthesia, better tolerability, and lower morbidity and mortality rates compared with the surgical methods. High cure, temporization, or palliation rates can be obtained via imaging-guided percutaneous drainage for all retroperitoneal abscesses with a safe access route.","PeriodicalId":50582,"journal":{"name":"Diagnostic and Interventional Radiology","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2020-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42047852","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}