Interventional radiology (Higashimatsuyama-shi (Japan)最新文献

{"title":"Transcatheter Arterial Embolization for Hemorrhagic Pelvic Fracture: Review Article.","authors":"Ryosuke Usui, Hiroshi Kondo","doi":"10.22575/interventionalradiology.2023-0015","DOIUrl":"10.22575/interventionalradiology.2023-0015","url":null,"abstract":"<p><p>Pelvic fractures are severe trauma that can cause hemorrhagic shock. The mortality rate is high when patients fall into shock. Therefore, prompt diagnosis and treatment are necessary. Hemostasis for hemorrhage associated with pelvic fractures is achieved through the mechanical stabilization of the fracture site, preperitoneal pelvic packing, and transcatheter arterial embolization. These techniques are frequently employed in hemodynamically unstable patients presenting with pelvic fractures. Among them, transcatheter arterial embolization is often considered the first-line choice: it is a particularly effective hemostatic method for arterial hemorrhage caused by pelvic fracture. An embolization technique and embolic agents should be considered comprehensively while considering the patient's hemodynamics, angiographic findings, and the urgency of the situation. This article describes the indications, techniques, results, and complications of transcatheter arterial embolization for pelvic fractures.</p>","PeriodicalId":73503,"journal":{"name":"Interventional radiology (Higashimatsuyama-shi (Japan)","volume":"9 3","pages":"156-163"},"PeriodicalIF":0.0,"publicationDate":"2024-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11570184/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142669852","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":"Percutaneous Covered Stenting in Splenic Vein for Left-sided Portal Hypertension Caused by Chronic Splenic Vein Obstruction.","authors":"Masayoshi Yamamoto, Suguru Hitomi, Takuya Hara, Hiroshi Kondo, Hiroshi Oba","doi":"10.22575/interventionalradiology.2023-0011","DOIUrl":"10.22575/interventionalradiology.2023-0011","url":null,"abstract":"<p><p>Left-sided portal hypertension (LSPH), an uncommon manifestation of portal hypertension, is characterized by conditions such as isolated gastric varices and splenomegaly, which result from impeded splenic venous drainage in the presence of pancreatic disease. We employed a percutaneous transhepatic technique to achieve regression of isolated gastric varices by implanting a covered stent within a blocked splenic vein and by embolizing the posterior gastric vein and varices using N-butyl-2-cyanoacrylate. We report the successful treatment of stenting for LSPH by the covered stent placement.</p>","PeriodicalId":73503,"journal":{"name":"Interventional radiology (Higashimatsuyama-shi (Japan)","volume":"9 1","pages":"31-35"},"PeriodicalIF":0.0,"publicationDate":"2023-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10955463/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140208420","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":"Magnetic Resonance Imaging Guidance for Percutaneous Needle Intervention.","authors":"Mayu Uka, Yusuke Matsui, Toshihiro Iguchi, Toshi Matsushita, Koji Tomita, Noriyuki Umakoshi, Takahiro Kawabata, Masanori Yamada, Takao Hiraki","doi":"10.22575/interventionalradiology.2023-0033","DOIUrl":"10.22575/interventionalradiology.2023-0033","url":null,"abstract":"<p><p>Magnetic resonance imaging (MRI) is one of the guiding modalities used for percutaneous needle insertion during interventional procedures. MRI guidance has several advantages, including multiplanar imaging capability, superior soft tissue contrast resolution, and the absence of ionizing radiation. When performing MRI-guided procedures, it is important to understand the suitable MRI systems, instruments, and imaging sequences for intervention. Furthermore, needle artifact characteristics must be fully understood to ensure safe and accurate needle insertion. In this article, we present the fundamental knowledge as regards the use of MRI guidance for percutaneous needle insertion and review its usefulness in representative interventional procedures, such as biopsy and tumor ablation.</p>","PeriodicalId":73503,"journal":{"name":"Interventional radiology (Higashimatsuyama-shi (Japan)","volume":"9 3","pages":"92-98"},"PeriodicalIF":0.0,"publicationDate":"2023-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11570213/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142669770","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":"Radiological Vascular Anatomy of the Caudate Lobe of the Liver Required for Transarterial Chemoembolization of Hepatocellular Carcinoma","authors":"Shiro Miyayama","doi":"10.22575/interventionalradiology.2022-0046","DOIUrl":"https://doi.org/10.22575/interventionalradiology.2022-0046","url":null,"abstract":"The caudate lobe is located between the bilateral hepatic lobes and is divided into three subsegments: the Spiegel lobe, paracaval portion, and caudate process. The caudate artery arises from various sites of the bilateral hepatic arteries as an independent branch, common trunk, or arcade. Extrahepatic arteries can enter the caudate lobe mainly by the right inferior phrenic artery. The caudate artery also supplies the main bile duct and posterior aspect of segment IV. Although catheterization into the caudate artery is occasionally difficult because of its small size and sharp angulation, selective embolization of a tumor feeder is a significant prognostic factor in patients with hepatocellular carcinoma originating there. Therefore, we should recognize the peculiarity of its vascular anatomy and should be familiar with catheterization and embolization techniques.","PeriodicalId":73503,"journal":{"name":"Interventional radiology (Higashimatsuyama-shi (Japan)","volume":"229 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135217565","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Stent Graft Placement for Injured Visceral Artery","authors":"Shiro Miyayama, Masashi Yamashiro, Rie Ikeda, Akira Yokka, Hideaki Komiya, Naoko Sakuragawa, Takuro Terada, Hidekazu Yamamoto","doi":"10.22575/interventionalradiology.2023-0005","DOIUrl":"https://doi.org/10.22575/interventionalradiology.2023-0005","url":null,"abstract":"Injury of the visceral artery is a potentially fatal complication of iatrogenic procedures, trauma, and tumors. A stent graft can achieve rapid exclusion of the injured arterial portion and minimize the risk of ischemic complications by preserving arterial flow to organs. Although various types of stent grafts are available worldwide, Viabahn has only been approved for visceral arterial injury in Japan. The reported technical and clinical success rates, including cases with injured pelvic or thoracic arterial branches, are 80%-100% and 66.7%-100%, respectively. Severe ischemic complications are rare; however, fatal ischemia occurs when the stent graft is immediately occluded. The necessity of antiplatelet therapy is controversial, and a target artery diameter ≤ 4 mm is a significantly higher risk factor of stent-graft occlusion.","PeriodicalId":73503,"journal":{"name":"Interventional radiology (Higashimatsuyama-shi (Japan)","volume":"19 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135215921","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Percutaneous Trans-jejunum Pancreatojejunostomy Reconstruction for Intractable Pancreatic Fistula after Pancreatoduodenectomy","authors":"Shohei Toyoda, Hideyuki Nishiofuku, Takeshi Matsumoto, Takeshi Sato, Shinsaku Maeda, Yuto Chanoki, Keisuke Oshima, Mariko Irizato, Tetsuya Masada, Satoru Sueyoshi, Toshihiro Tanaka","doi":"10.22575/interventionalradiology.2023-0008","DOIUrl":"https://doi.org/10.22575/interventionalradiology.2023-0008","url":null,"abstract":"We present an interventional radiology technique for percutaneous trans-jejunal pancreatojejunostomy reconstruction for intractable pancreatic fistula. A 70-year-old man with pancreatic cancer who had undergone pancreatoduodenectomy underwent percutaneous drainage for leakage from the anastomosis of the pancreatic duct to the jejunum. The leakage continued and the hole at the anastomosis site in the jejunum closed completely after 5 months. We performed percutaneous jejunostomy; the previously placed drainage catheter was then replaced with a balloon catheter, which was punctured by a 19-gauge needle from inside the jejunum through the percutaneous jejunostomy tube. The seeking catheter was inserted into the pancreatic duct. Finally, a side-holed 6-Fr straight catheter was successfully placed in the pancreatic duct through the percutaneous jejunostomy route.","PeriodicalId":73503,"journal":{"name":"Interventional radiology (Higashimatsuyama-shi (Japan)","volume":"56 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135162066","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Management of Splenic Injuries.","authors":"Yutaka Koide, Takuya Okada, Masato Yamaguchi, Koji Sugimoto, Takamichi Murakami","doi":"10.22575/interventionalradiology.2022-0003","DOIUrl":"10.22575/interventionalradiology.2022-0003","url":null,"abstract":"<p><p>Splenic injury is one of the most common abdominal parenchymal organ injuries. Since the spleen is a parenchymal organ with abundant blood flow, its injury can easily result in hemorrhagic shock. Therefore, prompt and appropriate management for hemostasis is critical. Management of splenic injury is determined by the hemodynamic status and the grade of injury. Splenectomy is the primary choice in cases with unstable hemodynamics, but splenic repair or non-operative management, including conservative treatment or transcatheter arterial embolization (TAE), may be chosen to preserve the spleen if time permits. Non-operative management has advantages over operative management in terms of complications and medical economics. TAE also plays a significant role in non-operative management by contributing to the improvement of patient outcomes.</p>","PeriodicalId":73503,"journal":{"name":"Interventional radiology (Higashimatsuyama-shi (Japan)","volume":"1 1","pages":"149-155"},"PeriodicalIF":0.0,"publicationDate":"2023-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11570251/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68224594","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 Tomography-guided Drainage with Modified Trocar Technique Using a <i>Drainaway</i> Drainage Kit.","authors":"Koji Togawa, Seishi Nakatsuka, Jitsuro Tsukada, Nobutake Ito, Yosuke Yamamoto, Togo Kogo, Hiroki Yoshikawa, Manabu Misu, Masashi Tamura, Shigeyoshi Soga, Masanori Inoue, Hideki Yashiro, Tadayoshi Kurata, Masahiro Okada, Masahiro Jinzaki","doi":"10.22575/interventionalradiology.2022-0027","DOIUrl":"10.22575/interventionalradiology.2022-0027","url":null,"abstract":"<p><strong>Purpose: </strong>Image-guided percutaneous drainage for abscesses is known as a safe and effective treatment. The computed tomography-guided percutaneous drainage kit <i>Drainaway</i> (SB Kawasumi Co., Ltd.), developed on the basis of a modified trocar method, has made it possible to complete the procedure only under computed tomography guidance without radiographic fluoroscopy. This study investigated the feasibility and safety of <i>Drainaway</i> for abscess drainage.</p><p><strong>Material and methods: </strong>In this retrospective observational study, 28 procedures in 27 patients (18 men and 9 women; age 67.0 ± 12.3 years) who underwent computed tomography-guided drainage using <i>Drainaway</i> between March and December 2021 at seven affiliated hospitals were analyzed. Patients with symptomatic, puncturable on computed tomography and refractory abscesses were included. Technical success (successful drainage with computed tomography alone), primary clinical success (successful drainage with <i>Drainaway</i> alone), secondary clinical success (avoidance of surgery), and complications were evaluated.</p><p><strong>Results: </strong>The sites of the abscesses were the intraperitoneal, retroperitoneal, and thoracic cavities in 19, 5, and 2 patients, respectively, and subcutaneous tissue in 1 patient. The mean size of the abscesses was 7.1 ± 3.4 cm. The technical success rate was 96.4%; the ligament of the puncture route could not be penetrated in one case. The primary clinical success rate was 77.8%, whereas the secondary clinical success rate of catheter upsizing or replacement was 96.3%. Complications included one case of biliary pleurisy that required drainage.</p><p><strong>Conclusions: </strong><i>Drainaway</i> is a useful device that allows abscess drainage using only computed tomography guidance without radiographic fluoroscopy.</p>","PeriodicalId":73503,"journal":{"name":"Interventional radiology (Higashimatsuyama-shi (Japan)","volume":"1 1","pages":"130-135"},"PeriodicalIF":0.0,"publicationDate":"2023-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10681752/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68224704","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":"Plug-assisted Retrograde Transvenous Obliteration-II for Gastric Varices: A Case Report.","authors":"Masakatsu Tsurusaki,&nbsp;Taku Kotera,&nbsp;Ryohei Kozuki,&nbsp;Atsushi Urase,&nbsp;Ayumi Hirayama,&nbsp;Keitaro Sofue,&nbsp;Takamichi Murakami","doi":"10.22575/interventionalradiology.2022-0021","DOIUrl":"https://doi.org/10.22575/interventionalradiology.2022-0021","url":null,"abstract":"<p><p>We present a case of gastric varices successfully treated with modified plug-assisted retrograde transvenous obliteration. A 45-year-old male patient had isolated fundal gastric varices caused by alcoholic cirrhosis. Contrast-enhanced computed tomography showed that the gastric varices were drained mainly via the gastro-renal shunt. The gastric varices were treated via plug-assisted retrograde transvenous obliteration using an IMPEDE vascular plug with a modified coil-assisted retrograde transvenous obliteration-II procedure. There were no complications during the procedure, and an endoscopic examination 3 months after the procedure revealed that the gastric varices had disappeared. To our knowledge, this is the first report on the application of plug-assisted retrograde transvenous obliteration-II using a newly designed IMPEDE vascular plug to avoid migration of the sclerosant.</p>","PeriodicalId":73503,"journal":{"name":"Interventional radiology (Higashimatsuyama-shi (Japan)","volume":"8 2","pages":"75-79"},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/c5/22/2432-0935-8-2-0075.PMC10359170.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9867666","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":"Endovascular and Percutaneous Embolotherapy for the Body and Extremity Arteriovenous Malformations.","authors":"Keigo Osuga,&nbsp;Kazuhiro Yamamoto,&nbsp;Hiroki Higashihara,&nbsp;Hiroshi Juri,&nbsp;Kiyohito Yamamoto,&nbsp;Akira Higashiyama,&nbsp;Hiroki Matsutani,&nbsp;Asami Sugimoto,&nbsp;Sou Toda,&nbsp;Tomohiro Fujitani","doi":"10.22575/interventionalradiology.2022-0008","DOIUrl":"https://doi.org/10.22575/interventionalradiology.2022-0008","url":null,"abstract":"<p><p>Arteriovenous malformations (AVMs) consist of abnormal communications between the arteries and veins. They can involve any part of the body and extremity and grow in proportion to age and in response to hormonal influence or trauma. When symptoms progress from Schöbinger clinical stage II to III, transcatheter and/or direct puncture embolization are less-invasive and repeatable options for symptom palliation. The goal of embolization is to obliterate the AV shunt, and the choice of lesion access and embolic agents is based on the individual anatomy and flow. Embolization can be technically challenging due to complex vascular anatomy and morbidity risks. Therefore, a multidisciplinary management is essential for the diagnosis and therapeutic intervention of AVMs.</p>","PeriodicalId":73503,"journal":{"name":"Interventional radiology (Higashimatsuyama-shi (Japan)","volume":"8 2","pages":"36-48"},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/ec/ea/2432-0935-8-2-0036.PMC10359173.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9867670","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}