Acta radiologica open最新文献

{"title":"Transcatheter arterial embolization for bleeding from the pancreaticoduodenal artery in patients with celiac artery stenosis: A technical report.","authors":"Yasuyuki Onishi,&nbsp;Hironori Shimizu,&nbsp;Hiroyoshi Isoda,&nbsp;Ken Shinozuka,&nbsp;Shigeru Ohtsuru,&nbsp;Yuji Nakamoto","doi":"10.1177/20584601221135180","DOIUrl":"https://doi.org/10.1177/20584601221135180","url":null,"abstract":"<p><strong>Background: </strong>Transcatheter arterial embolization (TAE) is widely accepted as a treatment for bleeding from the pancreaticodoudenal artery (PDA) in patients with celiac artery stenosis. However, the technical aspect of TAE has not received much attention.</p><p><strong>Purpose: </strong>To report the technical details and success rate of TAE for bleeding from the PDA in patients with CA stenosis.</p><p><strong>Material and methods: </strong>Between 2015 and 2021, nine TAE procedures were performed in eight patients (five women, three men; one woman underwent TAE twice). The cause of CA stenosis was compression by the median arcuate ligament in eight cases and CA dissection in one case. The cause of bleeding was flow-related aneurysm rupture in six cases. Pre-TAE CT showed a pseudoaneurysm in all cases. The technical details of TAE were recorded, and the success rate was evaluated.</p><p><strong>Results: </strong>The technical and clinical success rates were 100%. In six cases, both the CA and superior mesenteric artery (SMA) were cannulated using two parent catheters: a microcatheter advancing to the pseudoaneurysm from the CA (the CA approach) to achieve embolization and another catheter for angiography advancing from the SMA to map the vascular anatomy. In five cases, the CA approach was successfully performed after failed attempts of advancing a microcatheter from the SMA.</p><p><strong>Conclusion: </strong>TAE is an effective treatment for bleeding from the PDA in patients with CA stenosis. Using two parent catheters, one for CA cannulation and microcatheter advancement and another for SMA cannulation and vascular mapping, may be a useful technique.</p>","PeriodicalId":72063,"journal":{"name":"Acta radiologica open","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/74/2a/10.1177_20584601221135180.PMC9597204.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40657849","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Increased future liver function after modified associating liver partition and portal vein ligation/embolization for staged hepatectomy.","authors":"Mitsunari Maruyama,&nbsp;Takeshi Yoshizako,&nbsp;Rika Yoshida,&nbsp;Megumi Nakamura,&nbsp;Yoshitsugu Tajima,&nbsp;Hajime Kitagaki","doi":"10.1177/20584601221134951","DOIUrl":"https://doi.org/10.1177/20584601221134951","url":null,"abstract":"<p><strong>Background: </strong>The increasing ratio of functional future liver remnant (functional %FLR) after modified associating liver partition and portal vein ligation/embolization for staged hepatectomy (modified-ALPPS) compared with portal vein embolization (PVE) has not been comprehensively evaluated.</p><p><strong>Purpose: </strong>To compare the increasing ratio of functional %FLR between modified-ALPPS and PVE via technetium-99 m-galactosyl human serum albumin single-photon emission computed tomography (^99mTc-GSA SPECT/CT) fusion imaging.</p><p><strong>Material and methods: </strong>Seven and six patients underwent modified-ALPPS (modified-ALPPS group) and PVE (PVE group) from 2015 to 2019. The functional %FLR on 99 mTc-GSA SPECT/CT fusion imaging was assessed before and 1 week (modified-ALPPS group) and 3 weeks (PVE group) after each procedure. The increasing ratio of functional %FLR (functional %FLR ratio) was calculated and compared between the two groups. Moreover, the hypertrophy ratio of future liver remnant volume (FLRV ratio) and atrophy ratio of embolized liver volume (.ELV ratio) were evaluated.</p><p><strong>Results: </strong>The mean functional %FLR ratios of the modified-ALPPS group (1.47 ± 0.15) and the PVE group (1.49 ± 0.20) were comparable (<i>p</i> > .05). The median FLRV ratio of modified-ALPPS group (1.48) was higher than that of the PVE group (1.16), the median ELV ratio of the PVE group (0.81) was lower than that of the modified-ALPPS group (0.94), and the results significantly differed between the two groups (<i>p</i> < .05).</p><p><strong>Conclusion: </strong>The increasing ratio of functional %FLR was comparable between modified-ALPPS and PVE. Compared with PVE, ALPPS was associated with a higher hypertrophy rate of the remnant liver but a lower atrophy rate of the embolized liver.</p>","PeriodicalId":72063,"journal":{"name":"Acta radiologica open","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/8a/03/10.1177_20584601221134951.PMC9583209.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40567333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Computed tomographic pulmonary angiography: Three cases of low-tube-voltage acquisition with a slow injection of contrast medium.","authors":"Atsushi Urikura,&nbsp;Tsukasa Yoshida,&nbsp;Masahiro Endo,&nbsp;Koiku Asakura,&nbsp;Rui Sato,&nbsp;Atsushi Saiga,&nbsp;Michihisa Moriguchi,&nbsp;Kazuaki Nakashima,&nbsp;Takeshi Aramaki","doi":"10.1177/20584601221131476","DOIUrl":"https://doi.org/10.1177/20584601221131476","url":null,"abstract":"<p><p>Acute pulmonary thromboembolism occurring during cancer treatment has been increasing with the number of cancer patients and chemotherapy cases. Computed tomographic pulmonary angiography (CTPA) for evaluating the pulmonary artery is generally performed using rapid injection of contrast medium. However, intravenous catheters for contrast medium injection might cause extravasation due to rapid injection. This case series describes three patients who underwent contrast-enhanced computed tomography combined with low-tube-voltage imaging and slow injection. Low-tube-voltage slow-injection CTPA can be an effective technique for obtaining high contrast enhancement while accommodating fragile veins and low injection rates.</p>","PeriodicalId":72063,"journal":{"name":"Acta radiologica open","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/43/a7/10.1177_20584601221131476.PMC9575461.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40559230","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ultra-low-dose non-contrast CT and CT angiography can be used interchangeably for assessing maximal abdominal aortic diameter.","authors":"Jens Borgbjerg,&nbsp;Heidi S Christensen,&nbsp;Rozh Al-Mashhadi,&nbsp;Martin Bøgsted,&nbsp;Jens B Frøkjær,&nbsp;Lise Medrud,&nbsp;Nis Elbrønd Larsen,&nbsp;Jes S Lindholt","doi":"10.1177/20584601221132461","DOIUrl":"https://doi.org/10.1177/20584601221132461","url":null,"abstract":"<p><strong>Background: </strong>Routine CT scans may increasingly be used to document normal aortic size and to detect incidental abdominal aortic aneurysms.</p><p><strong>Purpose: </strong>To determine whether ultra-low-dose non-contrast CT (ULDNC-CT) can be used instead of the gold standard CT angiography (CTA) for assessment of maximal abdominal aortic diameter.</p><p><strong>Materials and methods: </strong>This retrospective study included 50 patients who underwent CTA and a normal-dose non-contrast CT for suspected renal artery stenosis. ULDNC-CT datasets were generated from the normal-dose non-contrast CT datasets using a simulation technique. Using the centerline technique, radiology consultants (<i>n</i> = 4) and residents (<i>n</i> = 3) determined maximal abdominal aortic diameter. The limits of agreement with the mean (LOAM) was used to access observer agreement. LOAM represents how much a measurement by a single observer may plausibly deviate from the mean of all observers on the specific subject.</p><p><strong>Results: </strong>Observers completed 1400 measurements encompassing repeated CTA and ULDNC-CT measurements. The mean diameter was 24.0 and 25.0 mm for CTA and ULDNC-CT, respectively, yielding a significant but minor mean difference of 1.0 mm. The 95% LOAM reproducibility was similar for CTA and ULDNC-CT (2.3 vs 2.3 mm). In addition, the 95% LOAM and mean diameters were similar for CTA and ULDNC-CT when observers were grouped as consultants and residents.</p><p><strong>Conclusions: </strong>Ultra-low-dose non-contrast CT exhibited similar accuracy and reproducibility of measurements compared with CTA for assessing maximal abdominal aortic diameter supporting that ULDNC-CT can be used interchangeably with CTA in the lower range of aortic sizes.</p>","PeriodicalId":72063,"journal":{"name":"Acta radiologica open","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/1e/09/10.1177_20584601221132461.PMC9561642.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33515562","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Myxomas and myxoid liposarcomas of the extremities: Our preliminary findings in conventional, perfusion, and diffusion magnetic resonance.","authors":"Luz M Morán,&nbsp;Jesús Vega,&nbsp;Nieves Gómez-León,&nbsp;Ana Royuela","doi":"10.1177/20584601221131481","DOIUrl":"https://doi.org/10.1177/20584601221131481","url":null,"abstract":"<p><strong>Background: </strong>The differentiation between myxomas and myxoid liposarcomas (MLPS) often is a serious challenge for the radiologists. Magnetic resonance imaging (MRI) is the most useful imaging technique in characterization of the soft tissue tumors (STT).</p><p><strong>Purpose: </strong>To evaluate in a sample of myxomas and MLPS of the extremities, what morphological findings in conventional MRI allow us to differentiate these two types of myxoid tumors, in addition to analyzing the validity of the apparent diffusion coefficient (ADC) values of diffusion-weighted MRI (DW-MRI).</p><p><strong>Material and methods: </strong>Magnetic resonance imaging studies in myxomas and MLPS of extremities searched in our PACS between 2015 and 2019. All studies had conventional MRI with T1, T2, and PD SPAIR sequences, while DW-MRI with ADC mapping and perfusion MRI with a T1 sequence repeated for 4 minutes after contrast injection were additional sequences only in some explorations. Two radiologists evaluated independently the MRI studies by examining the qualitative parameters. Apparent diffusion coefficient values were calculated using two methods-ADC global and ADC solid, and Receiver Operating Characteristic (ROC) curves were applied for analysis.</p><p><strong>Results: </strong>The features were consistent with MLPS: size greater than 10 cm, heterogeneous signal on T1, and nodular enhancement, while the common findings for myxomas were a homogenously hypointense signal on T1 and diffuse peritumoral enhancement. The solid and global ADC values were higher in myxomas. We observed that the solid ADC value less than 2.06 x 10^-3mm² x s would support the diagnosis of MLPS against myxoma.</p><p><strong>Conclusion: </strong>Overall, MRI with its different modalities improved the diagnostic accuracy when differentiating myxomas from MLPS of extremities.</p>","PeriodicalId":72063,"journal":{"name":"Acta radiologica open","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/a9/a7/10.1177_20584601221131481.PMC9549112.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33504897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Glioblastoma, IDH-wildtype with leptomeningeal metastasis to Meckel's cave: A case report.","authors":"Toshiki Murata,&nbsp;Masazumi Matsuda,&nbsp;Tetsugaku Shinozaki,&nbsp;Koichi Ishiyama","doi":"10.1177/20584601221131480","DOIUrl":"https://doi.org/10.1177/20584601221131480","url":null,"abstract":"<p><p>Meckel's cave or the trigeminal cistern is a subarachnoid space near the apex of the petrous portion of the temporal bone and contains cerebrospinal fluid and the Gasserian ganglion, which divides into the ophthalmic (V1), maxillary (V2), and mandibular (V3) nerves. Infectious, inflammatory, congenital, and neoplastic lesions can occur in Meckel's cave. Leptomeningeal metastasis of glioblastoma (GBM), IDH-wildtype to Meckel's cave is rare. We encountered a case of leptomeningeal metastasis of GBM to Meckel's cave in an elderly female patient who presented with pain around her right eye. Magnetic resonance imaging revealed enhancing lesions in the right temporal lobe and cervical spinal cord. The pathological diagnosis of GBM was confirmed after biopsy of the cervical spinal cord lesion, which showed hyperaccumulation of fluorodeoxyglucose (FDG) on FDG-positron emission tomography. This case indicates that metastatic lesions can also occur in Meckel's cave.</p>","PeriodicalId":72063,"journal":{"name":"Acta radiologica open","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/72/bc/10.1177_20584601221131480.PMC9549091.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33504899","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A survey of local diagnostic reference levels for the head, thorax, abdomen and pelvis computed tomography in Norway and Canada.","authors":"Elena Tonkopi,&nbsp;Eline Jahre Wikan,&nbsp;Tor Olav Hovland,&nbsp;Sivert Høgset,&nbsp;Thomas Alexander Kofod,&nbsp;Selasi K Sefenu,&nbsp;Emily Hughes-Ryan,&nbsp;Dakota D Entremont-O Connell,&nbsp;Catherine Gunn,&nbsp;Tanja Holter,&nbsp;Safora Johansen","doi":"10.1177/20584601221131477","DOIUrl":"https://doi.org/10.1177/20584601221131477","url":null,"abstract":"<p><strong>Background: </strong>Computed tomography (CT) contributes to 60% of the collective dose in medical imaging. Literature has demonstrated that patient dose varies across regions and countries. Establishing diagnostic reference levels (DRLs) contributes to the optimization of clinical practices and radiation protection.</p><p><strong>Purpose: </strong>To survey the dose indices (CTDIvol and dose-length product) for frequently performed CT examinations from the chosen hospitals in Norway and Canada and to determine local DRLs (LDRLs) based on the collected data.</p><p><strong>Material and methods: </strong>The survey included eight scanners from two Norwegian hospitals and four scanners from four Canadian hospitals. Dosimetry data were collected for the following routine CT examinations: head, contrast-enhanced thorax, and abdomen and pelvis. Overall 480 adult average-sized patients from Norway and 360 from Canada were included in the survey. The LDRLs were determined as the 75th percentile of distributions of median values of dose indicators from different CT scanners. The differences in dose between scanners were determined using single-factor ANOVA.</p><p><strong>Results: </strong>The LDRLs determined in Norway were higher overall than in Canada. The obtained values were compared to the national DRLs. The dose from several scanners in Norway exceeded national Norwegian DRLs, while Canadian LDRLs were below the Canadian reference levels. The differences between the means of the dose distributions from each scanner were statistically significant (<i>p</i> < 0.05) for all examinations with exception of identical scanners located in the same hospital and using the same protocols.</p><p><strong>Conclusion: </strong>Observed dose variations even in the same hospital, or from the same scanner model confirmed the need for CT protocol optimization.</p>","PeriodicalId":72063,"journal":{"name":"Acta radiologica open","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/c7/69/10.1177_20584601221131477.PMC9549116.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33504898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Quantitative bone SPECT/CT for evaluating treatment response in patient with sternoclavicular arthritis.","authors":"Hisashi Komoto,&nbsp;Kazuhiro Kitajima,&nbsp;Naoto Azuma,&nbsp;Masao Tamura,&nbsp;Hiroyuki Yokoyama,&nbsp;Tatsuya Tsuchitani,&nbsp;Koichiro Yamakado","doi":"10.1177/20584601221128409","DOIUrl":"https://doi.org/10.1177/20584601221128409","url":null,"abstract":"<p><p>We report here a case of sternoclavicular arthritis due to SAPHO syndrome in a 60-year-old female in which quantitative values determined using bone SPECT/CT were useful to evaluate response. After celecoxib and alendronate sodium hydrate therapy, the chief complaints were well relieved and post-treatment Tc-99m HMDP bone SPECT/CT examination showed decreased uptake. The maximum standardized uptake value (SUV), peak SUV, mean SUV, metabolic bone volume, and total bone uptake of the untreated lesion were 18, 16, 10, 17 mL, and 180, respectively, which were decreased to 8, 7, 5, 15 mL, and 75, respectively, after the treatment. In comparison with pre-treatment situation, those parameters were decreased by -56%, -56%, -50%, -12%, and -58%, respectively, following celecoxib and alendronate sodium hydrate therapy, likely reflecting treatment response. Quantitative bone SPECT/CT may be useful to evaluate joint inflammatory activity and treatment response in a patient with osteoartritis.</p>","PeriodicalId":72063,"journal":{"name":"Acta radiologica open","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/3f/73/10.1177_20584601221128409.PMC9536095.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33517221","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A case of Schistosoma japonicum retroperitoneal pseudotumor diagnosed by cone-beam CT-guided coaxial biopsy system.","authors":"Shu Matsushita,&nbsp;Shinichi Hamamoto,&nbsp;Ryo Morita,&nbsp;Michinori Shirano,&nbsp;Takeshi Inoue,&nbsp;Tomohisa Okuma,&nbsp;Takao Manabe","doi":"10.1177/20584601221129153","DOIUrl":"https://doi.org/10.1177/20584601221129153","url":null,"abstract":"<p><p>We report a rare case of retroperitoneal pseudotumor caused by <i>Schistosoma japonicum</i> that was diagnosed by computed tomography (CT) guided percutaneous biopsy in a 15-year-old Filipino male. Computed tomography (CT) and magnetic resonance imaging (MRI) revealed a mass lesion, including a mesenteric artery, in the right retroperitoneal space. His mother had a history of <i>S. japonicum</i> infection but his initial stool examination was negative. As schistosomiasis was suspected, cone-beam CT-guided biopsy was performed to enable transcatheter therapeutic arterial embolization to be performed immediately in the event of hemorrhage. Histopathological examination revealed schistosomal eggs. Cone-beam CT-guided technique with a coaxial biopsy system is a safe and accurate diagnostic procedure for <i>S. japonicum</i> retroperitoneal pseudotumor.</p>","PeriodicalId":72063,"journal":{"name":"Acta radiologica open","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/87/7d/10.1177_20584601221129153.PMC9513577.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40385665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"High volume retrograde portography for better discrimination of the portal vein during TIPS procedure.","authors":"J Altenbernd,&nbsp;S Zimmer,&nbsp;L Andrae,&nbsp;B Labonte,&nbsp;J Gruber,&nbsp;H Beier,&nbsp;M Abdulgader,&nbsp;M Buechter,&nbsp;M Forsting,&nbsp;J Theysohn","doi":"10.1177/20584601221128405","DOIUrl":"https://doi.org/10.1177/20584601221128405","url":null,"abstract":"<p><p><b>Background:</b> Imaging of the portal vein prior to puncture for TIPS is essential. <b>Purpose:</b> With this study, we examined a modified retrograde portography with regard to the reliable representation of the portal vein. <b>Material and Methods:</b> Prospective evaluation of 65 TIPS interventions with regard to the delimitation of the portal vein and the exact parameters of retrograde portography such as catheter diameter and contrast medium volume per injection. <b>Results:</b> Retrograde portographies with a large-lumen catheter (10 F) and a large contrast medium volume (40 mL) were performed in 35/63 patients with significantly better delineation of the portal vein than when using 5 F catheters with 10 mL contrast medium. <b>Conclusion:</b> The so-called high volume retrograde portography leads to better delimitation of the portal vein during TIPS application.</p>","PeriodicalId":72063,"journal":{"name":"Acta radiologica open","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9493682/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33482822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}