{"title":"Transcatheter Arterial Embolization for Colonic Diverticular Bleeding: Outcomes and Risk Factors for Rebleeding.","authors":"Ryoichi Kitamura, Wataru Higashiura, Morihiro Katsura, Tadashi Yasutani, Hiroaki Takara","doi":"10.1016/j.jvir.2025.08.021","DOIUrl":"10.1016/j.jvir.2025.08.021","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate transarterial embolization (TAE) outcomes in patients with diverticular bleeding and explore factors associated with rebleeding.</p><p><strong>Materials and methods: </strong>This retrospective, single-center study included patients with colonic diverticular bleeding who showed active bleeding on contrast-enhanced computed tomography (CT) and underwent angiography between January 2008 and March 2021. Data included demographics, embolization details, and clinical outcomes. The primary outcome was rebleeding; secondary outcomes were ischemic adverse events and in-hospital mortality. Univariable analysis assessed rebleeding factors.</p><p><strong>Results: </strong>Among 132 patients (median age, 79 years; interquartile range, 71-84 years; 49% male), active bleeding was detected by angiography in 72% (n = 95) and 67% (n = 89) of patients who underwent TAE. Ninety-four (71%) patients had right-sided colonic bleeding, and 38 (29%) had left-sided colonic bleeding. Rebleeding occurred in 12% (n = 16/132) of patients. The rebleeding rate was significantly lower in patients who underwent TAE compared with who did not (3.4% [n = 3/89] vs 30% [n = 13/43], respectively; P < .001). The rebleeding rate was significantly higher in patients with right-sided than that in those with left-sided colonic bleeding (16% [n = 15/94] vs 2.6% [n = 1/38], respectively; P = .039). Among patients with right-sided colonic bleeding, the rebleeding rate was significantly lower in those who underwent TAE compared with those who did not underwent TAE (3.0% [n = 2/66] vs 46% [n = 13/28], respectively; P < .001). Adverse events were limited to grade 1, and no in-hospital deaths occurred.</p><p><strong>Conclusions: </strong>TAE is a safe and effective treatment for colonic diverticular bleeding and may reduce rebleeding, particularly for bleeding from the right colon.</p>","PeriodicalId":49962,"journal":{"name":"Journal of Vascular and Interventional Radiology","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144976688","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":"Pulmonary Toxicity of Ethiodized Oil in the Venous Circulation in Mice: Radiological Findings and Pathological Correlation.","authors":"Shimpei Kato, Haruto Sugawara, Naomasa Okimoto, Toshihiro Furuta, Osamu Abe, Yasunori Ota, Hiroyuki Akai","doi":"10.1016/j.jvir.2025.08.017","DOIUrl":"10.1016/j.jvir.2025.08.017","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate the acute and chronic pulmonary toxicity and determine the median lethal dose (lethal dose 50% [LD50]) of intravenously administered ethiodized oil given the limited data on its systemic toxicity despite its known risk of inadvertent venous entry during lymphangiography.</p><p><strong>Materials and methods: </strong>Twenty female BALB/c mice received tail vein injections of saline (n = 4) or ethiodized oil (Lipiodol; Guerbet, Villepinte, France) at 10 μL (n = 4), 30 μL (n = 8), or 50 μL (n = 4). Survival outcomes, computed tomography (CT) imaging findings, and histopathological features including hemosiderin deposition were evaluated. Chronic effects were assessed at 10 weeks through histopathology and hemosiderin deposition quantification. Human equivalent doses (HEDs) were calculated using body weight ratio conversion.</p><p><strong>Results: </strong>The LD50 was determined to be 30 μL in mice, corresponding to an HED of 94.7 mL for a 60-kg human. All mice receiving 50 μL died immediately, whereas the 30-μL group showed 50% survival. CT imaging revealed dose-dependent ethiodized oil accumulation predominantly in pulmonary vasculature, with regional heterogeneity in distribution patterns. Surviving mice from the 30-μL group exhibited significantly higher hemosiderin deposition compared with the 10-μL group (P = .0054), indicating chronic microvascular damage.</p><p><strong>Conclusions: </strong>Intravenous ethiodized oil induces dose-dependent pulmonary embolism with an LD50 of 30 μL in mice, and even sublethal doses cause chronic pulmonary injury, highlighting the need for clinical monitoring in cases of suspected venous exposure.</p>","PeriodicalId":49962,"journal":{"name":"Journal of Vascular and Interventional Radiology","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144976690","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}
Benjamin York, Bryce D Beutler, Lenora M Lewis, Ellen Y Chang, Ishan Shah, April Ballard, Brittany J Kazmierski, Samantha S Chau, Hisham Tchelepi
{"title":"Ultrasound Fusion in Interventional Radiology: A Practical Guide to Procedural Applications.","authors":"Benjamin York, Bryce D Beutler, Lenora M Lewis, Ellen Y Chang, Ishan Shah, April Ballard, Brittany J Kazmierski, Samantha S Chau, Hisham Tchelepi","doi":"10.1016/j.jvir.2025.08.016","DOIUrl":"10.1016/j.jvir.2025.08.016","url":null,"abstract":"<p><p>Ultrasound (US) fusion, defined as coregistration of cross-sectional images and real-time planar US, has emerged as a powerful tool to enhance the safety and accuracy of image-guided interventions. Computed tomography (CT), magnetic resonance (MR) imaging, and positron emission tomography (PET) can be integrated with conventional US using fusion navigation software, which is available from most major vendors. The US fusion technique enables precise intraprocedural localization of target lesions. The software is broadly accessible, intuitive to use, and suitable for implementation by both interventional and diagnostic radiologists in community and academic settings. In this narrative review, the authors present a comprehensive overview of US fusion-guided interventions, detailing the technical approach and providing case examples from a major teaching hospital.</p>","PeriodicalId":49962,"journal":{"name":"Journal of Vascular and Interventional Radiology","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144976651","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":"Fiducial Marker Placement for Gated Radiotherapy Using Real-Time Tumor-Tracking in Pancreatic Cancer: A Comparative Analysis of Transarterial and Percutaneous Approaches.","authors":"Daisuke Kato, Daisuke Abo, Ryo Morita, Norio Katoh, Naoki Miyamoto, Ryota Yamada, Naoya Kinota, Takaaki Fujii, Kouji Yamasaki, Motoma Kanaya, Hidefumi Aoyama, Kohsuke Kudo","doi":"10.1016/j.jvir.2025.08.018","DOIUrl":"10.1016/j.jvir.2025.08.018","url":null,"abstract":"<p><strong>Purpose: </strong>To assess and compare the feasibility and safety of transarterial and percutaneous fiducial marker placements for gated radiotherapy using real-time tumor-tracking (RTRT) in patients with pancreatic cancer.</p><p><strong>Materials and methods: </strong>This retrospective cohort study included 61 patients with inoperable pancreatic cancer who underwent transarterial (n = 34) or percutaneous (n = 27) fiducial marker placement between 2015 and 2023. Technical and clinical success, adverse events (AEs), procedure time, number of markers, tumor-to-marker distance, migration, per-marker availability for RTRT, and reasons for marker unavailability were assessed.</p><p><strong>Results: </strong>Both approaches achieved high technical and clinical success rates (transarterial approach, 91.4% and 97.1%; percutaneous approach, 96.3% and 96.3%; P = .626 and P = 1.000) without moderate or severe AEs. Mild AEs occurred in 2.9% and 7.4% of patients in the transarterial and percutaneous groups (P = .575). The median procedure time was shorter in the percutaneous group (35 vs 50 minutes, P = .006). The percutaneous group used more markers (3 vs 1 [median], P < .001). The median tumor-to-marker distance was comparable between groups (transarterial approach, 21 mm; percutaneous approach, 26 mm; P = .317). Migration occurred in only 1 percutaneous case (1.4%). On a per-marker basis, the transarterial group had higher marker availability for RTRT (97.1%) than the percutaneous group (70.8%, P = .001). Marker unavailability was due to untraceable shape (transarterial approach, 1; percutaneous approach, 12), lack of synchronization with tumor motion (percutaneous approach, 6), or others (percutaneous approach, 3).</p><p><strong>Conclusions: </strong>Transarterial and percutaneous fiducial marker placements are safe and feasible for administering RTRT in patients with pancreatic cancer.</p>","PeriodicalId":49962,"journal":{"name":"Journal of Vascular and Interventional Radiology","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144976703","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}
Koji Yamasaki, Hiroshi Kondo, Masayoshi Yamamoto, Kiichi Watanabe, Kanta Kitagawa, Takaaki Hirano, Aiko Kugimiya, Takeshi Wada, Kohsuke Kudo, Hiroshi Oba
{"title":"Mechanical Thrombectomy Using a Balloon Guide Catheter for Acute Occlusion of the Superior Mesenteric Artery.","authors":"Koji Yamasaki, Hiroshi Kondo, Masayoshi Yamamoto, Kiichi Watanabe, Kanta Kitagawa, Takaaki Hirano, Aiko Kugimiya, Takeshi Wada, Kohsuke Kudo, Hiroshi Oba","doi":"10.1016/j.jvir.2025.08.020","DOIUrl":"10.1016/j.jvir.2025.08.020","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate the effectiveness and safety of mechanical thrombectomy using a balloon guide catheter (BGC) for acute occlusion of the superior mesenteric artery (SMA).</p><p><strong>Materials and methods: </strong>A retrospective review of 18 patients admitted to the authors' institute with acute SMA occlusion between April 2019 and March 2024 was conducted. Mechanical thrombectomy was performed with balloon occlusion. An 8-F BGC was advanced into the origin of the SMA, and after occlusion, a 6-F guiding catheter was advanced coaxially to aspirate the thrombus. Technical success was defined as the successful advancement of the BGC into the SMA. Therapeutic success was defined as complete thrombus removal and revascularization of the SMA.</p><p><strong>Results: </strong>Eighteen consecutive patients (median age, 78 years; range, 70-85 years; 11 men and 7 women) underwent mechanical thrombectomy using a BGC. Technical success was achieved in all (100%) patients. Therapeutic success was achieved in 17 (94%) patients. Six (33%) patients underwent bowel resection after endovascular therapy, and 1 (6%) patient developed short bowel syndrome. The 30-day mortality rate was 17%. There were 2 adverse events related to guide wire manipulation. In 1 patient, a guide wire perforation caused a retroperitoneal hematoma, and in a second patient, a guide wire caused an iatrogenic non-flow-limiting SMA dissection. Therapeutic intervention was not required in either case.</p><p><strong>Conclusions: </strong>Mechanical thrombectomy using a BGC in acute SMA occlusion appears technically feasible; however, segmental bowel resection is still required in a minority of patients.</p>","PeriodicalId":49962,"journal":{"name":"Journal of Vascular and Interventional Radiology","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144976672","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}
Wesley Wiechecki RT(R), Matthew McIntyre MD, Marco Colasurdo MD
{"title":"Percutaneous Direct Puncture Embolization of a Sphenopalatine Artery Pseudoaneurysm through a Bullet Trajectory","authors":"Wesley Wiechecki RT(R), Matthew McIntyre MD, Marco Colasurdo MD","doi":"10.1016/j.jvir.2025.04.011","DOIUrl":"10.1016/j.jvir.2025.04.011","url":null,"abstract":"","PeriodicalId":49962,"journal":{"name":"Journal of Vascular and Interventional Radiology","volume":"36 9","pages":"Pages 1472-1473"},"PeriodicalIF":2.6,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144865794","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":"Contents in Brief","authors":"","doi":"10.1016/S1051-0443(25)00482-8","DOIUrl":"10.1016/S1051-0443(25)00482-8","url":null,"abstract":"","PeriodicalId":49962,"journal":{"name":"Journal of Vascular and Interventional Radiology","volume":"36 9","pages":"Page A4"},"PeriodicalIF":2.6,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144865915","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":"Subscription Information Page","authors":"","doi":"10.1016/S1051-0443(25)00481-6","DOIUrl":"10.1016/S1051-0443(25)00481-6","url":null,"abstract":"","PeriodicalId":49962,"journal":{"name":"Journal of Vascular and Interventional Radiology","volume":"36 9","pages":"Page A2"},"PeriodicalIF":2.6,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144865914","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}
Mathias Montveneur, Guillaume Daniel, Pierre-Jules Delannoy, Kinga Michalewska, Sonia Ramos-Pascual, Mo Saffarini, Nicolas Bouchareine
{"title":"Atherectomy versus Stent Placement for Common Femoral Artery Atherosclerotic Disease: A Systematic Review.","authors":"Mathias Montveneur, Guillaume Daniel, Pierre-Jules Delannoy, Kinga Michalewska, Sonia Ramos-Pascual, Mo Saffarini, Nicolas Bouchareine","doi":"10.1016/j.jvir.2025.08.015","DOIUrl":"10.1016/j.jvir.2025.08.015","url":null,"abstract":"<p><strong>Purpose: </strong>To compare the outcomes of atherectomy versus stent placement for common femoral artery (CFA) symptomatic atherosclerosis.</p><p><strong>Materials and methods: </strong>This review followed Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines and was registered in PROSPERO. MEDLINE and Embase databases were searched for records from 2000 to 2023. The following data were extracted and tabulated: (a) characteristics of studies, (b) patients, (c) lesions and interventions, and (d) clinical and technical outcomes. Risk of bias was assessed using Mixed Methods Appraisal Tool (MMAT).</p><p><strong>Results: </strong>The search identified 2,088 references, of which 33 studies were included: 11 reported only on atherectomy, 20 reported only on stent placement, and 2 reported on both treatments. Atherectomy and stent placement studies were comparable in terms of age, sex, prevalence of comorbidities, chronic limb ischemia, preprocedural Rutherford score, and ankle-brachial index. Technical success ranged across the studies from 92% to 100% for atherectomy versus 94% to 100% for stent placement, periprocedural adverse event rates ranged from 0% to 24% versus 0% to 19%, rates of freedom from target lesion revascularization ranged from 83% to 100% versus 81% to 100%, and limb salvage rates ranged from 85% to 100% versus 94% to 100%. Stent fracture rates ranged from 0% to 8%. Only 5 of 13 studies on atherectomy and 5 of 22 studies on stent placement met all 7 MMAT criteria.</p><p><strong>Conclusions: </strong>This systematic review demonstrates satisfactory outcomes with both methods, with no clear advantage of one technique over the other. However, available data on these 2 techniques are heterogeneous. Future studies are necessary to conclude if either technique is superior for the treatment of symptomatic CFA atherosclerosis.</p>","PeriodicalId":49962,"journal":{"name":"Journal of Vascular and Interventional Radiology","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144976705","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}