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

{"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":"The New Updated Barcelona Clinic Liver Cancer Staging System: Roles of Trans-arterial Chemoembolization and Homework to Interventional Radiologists.","authors":"Koichiro Yamakado, Haruyuki Takaki","doi":"10.22575/interventionalradiology.2022-0035","DOIUrl":"10.22575/interventionalradiology.2022-0035","url":null,"abstract":"<p><p>Barcelona Clinic Liver Cancer staging system, which has been identified as the most commonly used staging system in patients with hepatocellular carcinoma, was initially published in 1999, and it was updated in 2022. This new Barcelona Clinic Liver Cancer staging shows more flexible strategies for the treatment of hepatocellular carcinoma based on each stage. Although the roles of trans-arterial chemoembolization were limited in intermediate stage (Barcelona Clinic Liver Cancer-B) patients in the previous version, its roles have been expanded in the new version of Barcelona Clinic Liver Cancer staging system. In this manuscript, we introduce how trans-arterial chemoembolization is incorporated in a new Barcelona Clinic Liver Cancer staging system and explore the new role of trans-arterial chemoembolization and what interventional radiologists seek for in a near future.</p>","PeriodicalId":73503,"journal":{"name":"Interventional radiology (Higashimatsuyama-shi (Japan)","volume":"1 1","pages":"e20220035"},"PeriodicalIF":0.0,"publicationDate":"2023-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12078026/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68224718","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}

{"title":"Head and Neck Arteriovenous Malformations: Clinical Manifestations and Endovascular Treatments.","authors":"Shuichi Tanoue,&nbsp;Norimitsu Tanaka,&nbsp;Masamichi Koganemaru,&nbsp;Asako Kuhara,&nbsp;Tomoko Kugiyama,&nbsp;Miyuki Sawano,&nbsp;Toshi Abe","doi":"10.22575/interventionalradiology.2022-0009","DOIUrl":"https://doi.org/10.22575/interventionalradiology.2022-0009","url":null,"abstract":"<p><p>Arteriovenous malformations (AVMs) are vascular malformations that present high-flow direct communication between the arteries and veins, not involving the capillary beds. They can be progressive and lead to various manifestations, including abnormal skin or mucosal findings, ischemia, hemorrhage, and high-output heart failure in severe cases. AVMs often involve the head and neck region. Head and neck AVMs can present region-specific clinical manifestations, angioarchitecture, and complications, especially in cosmetic appearance and ingestion, respiratory, and neuronal functions. Therefore, when planning endovascular treatment of head and neck AVMs, physicians should consider not only the treatment strategy but also the preservation of the cosmetic appearance and critical functions. Knowledge of the functional vascular anatomy as well as treatment techniques should facilitate a successful management. This review summarizes AVMs' clinical manifestations, imaging findings, treatment strategy, and complications.</p>","PeriodicalId":73503,"journal":{"name":"Interventional radiology (Higashimatsuyama-shi (Japan)","volume":"8 2","pages":"23-35"},"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/d6/b1/2432-0935-8-2-0023.PMC10359175.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9862536","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":"An Update on Embolization for Pulmonary Arteriovenous Malformations.","authors":"Masashi Shimohira,&nbsp;Tatsuya Kawai,&nbsp;Kengo Ohta","doi":"10.22575/interventionalradiology.2021-0030","DOIUrl":"https://doi.org/10.22575/interventionalradiology.2021-0030","url":null,"abstract":"<p><p>Pulmonary arteriovenous malformations are abnormal connections between a pulmonary artery and a pulmonary vein that can lead to ischemic stroke and brain abscess due to right-to-left shunting of blood. Embolization is currently considered the first treatment option for pulmonary arteriovenous malformations owing to its minimal invasiveness. This review updates the indications and techniques for the embolization of pulmonary arteriovenous malformations and determines the persistence of pulmonary arteriovenous malformations following embolization based on the most recent literature.</p>","PeriodicalId":73503,"journal":{"name":"Interventional radiology (Higashimatsuyama-shi (Japan)","volume":"8 2","pages":"56-63"},"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/ba/2432-0935-8-2-0056.PMC10359166.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9867664","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}