• 한국임상수의학회:학술대회논문집
• /
• 한국임상수의학회 2007년도 춘계학술대회
• /
• pp.146-146
• /
• 2007

• Korean Journal of Radiology
• /
• 제2권4호
• /
• pp.204-209
• /
• 2001

Objective: To determine the feasibility of transcaval transjugular intrahepatic portosystemic shunt (TIPS) in patients with occluded previous TIPS. Materials and Methods: Between February 1996 and December 2000 we performed five transcaval TIPS procedures in four patients with recurrent gastric cardiac variceal bleeding. All four had occluded TIPS, which was between the hepatic and portal vein. The interval between initial TIPS placement and revisional procedures with transcaval TIPS varied between three and 31 months; one patient underwent transcaval TIPS twice, with a 31-month interval. After revision of the occluded shunt failed, direct cavoportal puncture at the retrohepatic segment of the IVC was attempted. Results: Transcaval TIPS placement was technically successful in all cases. In three, tractography revealed slight leakage of contrast materials into hepatic subcapsular or subdiaphragmatic pericaval space. There was no evidence of propagation of extravasated contrast materials through the retroperitoneal space or spillage into the peritoneal space. After the tract was dilated by a bare stent, no patient experienced trans-stent bleeding and no serious procedure-related complications occurred. After successful shunt creation, variceal bleeding ceased in all patients. Conclusion: Transcaval TIPS placement is an effective and safe alternative treatment in patients with occluded previous TIPS and no hepatic veins suitable for new TIPS.

• 대한약학회:학술대회논문집
• /
• 대한약학회 2003년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.1
• /
• pp.308.1-308.1
• /
• 2003

We underwent this study to know correlation between the amount of portosysternic shunt/hepatic fibrosis and bioavailability parameters such as AUC, Cmax, Tmax and t1 /2 of high extraction ratio drug, propranolol, in CCl4-induced liver cirrhosis model of rats. This study describes the bioavaility study of propranolol(5 mg/kg), Shunt Index using thallium-201 per rectum scintigraphy to to measure the amount of portosystemic shunt indirectly and intrahepatic hydroxyproline content performed in the CCl4-induced liver cirrhosis model of rats. (omitted)

• 한국의학물리학회:학술대회논문집
• /
• 한국의학물리학회 2002년도 Proceedings
• /
• pp.328-330
• /
• 2002

Large balloon angio catheter is used for Percutaneous Transluminal Angioplsty(TPA) of the iliac, femoral and renal arteries as well as after Transjugular Intrahepatic portosystemic shunt(TIPS). The use of angioplasty balloon filled with liquid form of radioisotope reduces the rate of restenosis after PTA. The purpose of this study was to evaluate the absorbed dose to the target vessels from various sized large balloon filled with liquid form of Ho-166-DTPA. Four balloons of balloon dilatation catheters evaluated were 5, 6, 8 and 10 mm in diameter. GafChromic film was used for the estimation of the absorbed dose near the surface of the balloon catheters. Absorbed dose rates are plotted in units of Gy/min/GBq/ml as a function of radial distance in mm from the surface of balloon. The absorbed dose rate was 1.1, 1.6, 2.2 and 2.3 Gy/min/GBq/ml at a balloon surface, 0.3, 0.4, 0.5 and 0.6 Gy/min/GBq/ml at 1 mm depth for various balloon diameter 5, 6, 8 and 10 mm in diameter respectively. The study was conducted to estimate the absorbed doses to the vessels from various sized large balloons filled with liquid form of Ho-166-DTPA for clinical trial of radiation therapy after the PTA. The absorbed dose distribution of Ho-166 appeared to be nearly ideal for vascular irradiation since beta range is very short avoiding unnecessary radiation to surrounding normal tissues.

• 대한영상의학회지
• /
• 제81권1호
• /
• pp.231-236
• /
• 2020

십이지장 정맥류는 간경화증에 의한 문맥압 고혈압 환자에서 발생할 수 있으며, 치명적인 심한 상부 위장관 출혈을 일으킬 수 있으나 아직까지 명확한 치료 지침이 정립되어 있지는 않다. 일차적으로 내시경으로 치료를 시도하고 지혈 실패 시 목정맥경유간속문맥전신순환연결술, 풍선 혹은 혈관 마개를 이용한 역행성 경정맥 폐색술, 피부간경유 폐색술 등과 같은 중재적 치료를 고려할 수 있다. 저자들은 내시경적 치료에 실패한 십이지장 정맥류 출혈 환자에게 저하된 간 기능과 해부학적인 구조의 제한으로 인해 코일을 이용한 역행성 경정맥 폐색술을 시행하여 성공적으로 치료한 1예를 경험하였기에 이를 보고하고자 한다.