• Korean Journal of Radiology
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• 제1권3호
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• pp.169-171
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• 2000

In order to relieve mechanical obstruction caused by rectal carcinoma, a bare rectal stent was inserted in the sigmoid colon of a 70-year-old female. The procedure was successful, and for one month the patient made good progress. She then complained of abdominal pain, however, and plain radiographs of the chest and abdomen revealed the presence of free gas in the subdiaphragmatic area. Surgical findings showed that a spur at the proximal end of the bare rectal stent had penetrated the rectal mucosal wall. After placing a bare rectal stent for the palliative treatment of colorectal carcinoma, close follow-up to detect possible perforation of the bowel wall is necessary.

• 대한영상의학회지
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• 제85권1호
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• pp.230-234
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• 2024

혈관 내 재개통 인터벤션은 수술 후 정맥폐색에 있어 효과적인 치료 방법 중 하나이다. 간경유 또는 비장경유를 통한 접근을 흔히 시도하지만, 경피적 장간막 경유 접근 방법은 전향적인 접근이 가능한 장점이 있다. 본 증례는 수술 후 간문맥 이식편 폐색 환자에서 경피적 장간막 경유 접근법으로 성공적인 혈관 내 재개통을 보여준다.

• Korean Journal of Radiology
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• 제24권8호
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• pp.719-728
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• 2023

Radiofrequency ablation (RFA) has been widely used to manage hepatocellular carcinomas (HCCs) equal to or smaller than 3 cm. No-touch RFA has gained attention and has recently been implemented in local ablation therapy for HCCs, despite its technical complexity, as it provides improved local tumor control compared to conventional tumor-puncturing RFA. This article presents the practice guidelines for performing no-touch RFA for HCCs, which have been endorsed by the Korean Society of Image-Guided Tumor Ablation (KSITA). The guidelines are primarily designed to assist interventional oncologists and address the limitations of conventional tumor-puncturing RFA with describing the fundamental principles, various energy delivery methods, and clinical outcomes of no-touch RFA. The clinical outcomes include technical feasibility, local tumor progression rates, survival outcomes, and potential complications.

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

• 대한후두음성언어의학회지
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• 제19권1호
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• pp.31-37
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• 2008

Patients with impaired ability to eat require nutritional support enterally or parenterally. Gastrostomy is a preferred method because total parenteral nutrition has many complications and high cost. Surgical gastrostomy has been a traditional and well-established method prior to the development of percutaneous gastrostomy. Since then, percutaneous gastrostomy has been established as an effective, safe, easy technique with a low morbidity and mortality rate. Consequently, percutaneous gastrostomy has been the first method for long-term enteral nutrition. The purpose of this review is to describe the techniques, indications, complications of percutaneous radiologic gastrostomy/gastrojejunostomy and to compare with endoscopic method.

• 대한방사선기술학회지:방사선기술과학
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• 제20권1호
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• pp.43-49
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• 1997

Purpose of this paper is to extend help for clinical application in balloon cholangiography on patients who have undergone endoscopic sphincterotomy, impacted stones of intrahepatic duct, and missed bile duct because of other diseases in operating endoscopic retrograde cholangiopancreatography. This study was done for the patients who had clinical signs of biliary diseases from January to December In 1996. We studied 45 patients who had endoscopic sphincterotomy, re-examination after interventional treatment of the endoscopic retrograde cholangiopancreatography, and uncertain diagnosis due to common bile duct and intrahepatic duct those are not filled with contrast media. Balloon cholangiography was performed in case of uncertain diagnosis while operating endoscopic retrograde cholangiopancreatography. First of all, we insert balloon catheter Into the working channel of treatment jejunofiberscope and remove treatment Jejunofiberscope after ballooning, and lastly take biliary tract X-ray after Injection and changing position of patient. The results of this study were as follows. (1) In classification of diseases, stones of gall bladder, those of common bile duct, and those of intrahepatic duct were 30 cases, fistula was 1 case. (2) In total cases of 45, only diagnosis were 25 cases, interventional treatment were 20 cases. (3) In case of interventional treatment, endoscopic sphincterotomy and endoscopic nasobiliary drainage, and stone removal were about the same, 7, 7, 6 respectively. Balloon cholangiography will be useful to prevent patients from having repeated and unnecessary studies for the cases above explained. It is considered that this study will be useful for clinical application in terms of reducing medical expenses, pain while examination, and consultation hours.

• 대한영상의학회지
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• 제83권5호
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• pp.1128-1133
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• 2022

부갑상선암 수술 중 발생하는 총경동맥 파열은 매우 드물고 생명을 위협하는 질환이다. 저자들은 재발한 부갑상선암을 가진 59세 남자 환자에서 파열된 총경동맥을 응급 피복형 스텐트 삽입을 통해 성공적으로 치료한 증례를 보고한다. 수술 도중 환자의 우측 총경동맥은 갑자기 파열되었고 수술적 대처에도 활력징후가 급속하게 악화되었으나 스텐트 삽입 후 호전되었고 합병증 없이 퇴원하였다.

• 대한영상의학회지
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• 제84권2호
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• pp.320-331
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• 2023

유방촬영술을 이용한 유방암 검진은 표준 영상 방법이다. 초음파에서 보이지 않고 유방촬영술이나 디지털 유방 토모신테시스에서만 보이는 의심스러운 석회화, 구조 왜곡의 조직학적 진단을 위해 입체정위생검과 유방촬영술 유도하 수술 전 위치결정술을 시행한다. 본 종설에서는 입체정위생검의 적응증 및 비적응증, 방법, 입체정위생검 후 클립 삽입과 디지털 유방 토모신테시스 유도하 입체정위생검에 대해 알아보고자 한다. 또한, 유방촬영술 유도하 수술 전 위치결정술을 침위치결정술과 비침위치결정술로 나누어 소개하고자 한다.

• Korean Journal of Radiology
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• 제25권7호
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• pp.603-612
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• 2024

Artificial intelligence (AI) is rapidly gaining recognition in the radiology domain as a greater number of radiologists are becoming AI-literate. However, the adoption and implementation of AI solutions in clinical settings have been slow, with points of contention. A group of AI users comprising mainly clinical radiologists across various Asian countries, including India, Japan, Malaysia, Singapore, Taiwan, Thailand, and Uzbekistan, formed the working group. This study aimed to draft position statements regarding the application and clinical deployment of AI in radiology. The primary aim is to raise awareness among the general public, promote professional interest and discussion, clarify ethical considerations when implementing AI technology, and engage the radiology profession in the ever-changing clinical practice. These position statements highlight pertinent issues that need to be addressed between care providers and care recipients. More importantly, this will help legalize the use of non-human instruments in clinical deployment without compromising ethical considerations, decision-making precision, and clinical professional standards. We base our study on four main principles of medical care-respect for patient autonomy, beneficence, non-maleficence, and justice.

• 대한영상의학회지
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• 제84권2호
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• pp.332-344
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• 2023

비촉지성 유방 병변의 발견이 늘어나고 유방암에서도 유방 보존 수술이나 선행항암화학요법이 증가하면서, 유방 병변의 진단과 처치에 있어서 초음파 유도하 중재 시술은 갈수록 그 역할이 중요해지고 이용이 늘어나고 있다. 본 종설에서는 유방 초음파 유도하 중재 시술 중 가장 많이 쓰이는 조직검사와 조직 마커 삽입, 수술 전 위치결정술에 대해 종류와 시술 방법, 적응증, 장단점 등을 알아보고 실제 진료 현장에서 시행하는 데에 도움을 주고자 한다.