• Title/Summary/Keyword: 영상의학과

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Balloon Angioplasty in a Pediatric Renal Artery Occlusion (소아 신장 동맥 폐색에서의 풍선 혈관성형술)

  • Song, Hwayoung;Jung, Hye Doo;Kim, Jeong-Eun;Lee, Sang Min;Hong, Wonju;Lee, Kwanseop
    • Journal of the Korean Society of Radiology
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    • v.79 no.6
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    • pp.332-336
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    • 2018
  • Renal artery injury is a rare complication in blunt trauma, but can cause devascularization of the kidney, leading to renal failure. It requires early diagnosis and management. The treatment of renal artery injury still remains controversial, but recent studies have reported the successful treatment outcome with endovascular stent placement. Nevertheless, there is no standard treatment strategy in cases of pediatric patients. We report a case of a 16-year-old girl with right renal artery occlusion associated with a grade IV liver laceration. She was treated with only balloon angioplasty, and the kidney showed marked improvement of parenchymal perfusion with normalized renal function. Treatment with only balloon angioplasty can be a treatment option in pediatric patients with renal artery injury.

Clear Cell Borderline Tumor of the Ovary: A Case Report (난소에 발생한 경계성 투명세포종: 증례 보고)

  • Ha Jung Kim;Kyeong Ah Kim;Yikyeong Chun;Yang Shin Park;Mi Jin Song;Jae Woong Choi
    • Journal of the Korean Society of Radiology
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    • v.84 no.3
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    • pp.692-697
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    • 2023
  • Clear cell borderline ovarian tumor (CCBOT) is quite rare, and only a few cases of CCBOT have been reported. Unlike most borderline ovarian tumors, CCBOTs appear solid because they are almost always pathologically adenofibromatous. Herein, we report the MRI findings of a CCBOT discovered in a 22-year-old female.

Ovarian Artery Rupture Presenting with a Spontaneous Retroperitoneal Hemorrhage of an Anticoagulated Patient: A Successful Treatment with Embolization (항응고치료 환자에서 자발성 후복막강 출혈로 나타난 난소동맥 파열: 색전술을 이용한 성공적 치료)

  • So Jeong Lee;Min Jeong Choi;Bong Man Kim;Sang Yoon Kim
    • Journal of the Korean Society of Radiology
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    • v.81 no.6
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    • pp.1453-1458
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    • 2020
  • Retroperitoneal hemorrhage is a potentially lethal complication in patients on anticoagulant therapy and can be caused by ovarian artery bleeding, regardless of the patients' age and obstetric history. This case illustrates the clinical presentation of ovarian artery bleeding in a postmenopausal female on anticoagulant therapy, the diagnostic utility of transcatheter angiography, and successful embolization.

Burnout among Radiologists in Korea: Prevalence, Risk Factors, and Remedies (한국 영상의학과 의사의 탈진: 빈도, 위험인자, 해결 방안)

  • Woo Kyoung Jeong;Byung Ihn Choi
    • Journal of the Korean Society of Radiology
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    • v.83 no.4
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    • pp.776-782
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    • 2022
  • Burnout among radiologists has recently emerged as an issue that poses a threat to patient safety. Burnout adversely effects the quality of patient care and may lead to health problems in physicians. Approximately 84% of board-certified radiologists working in large hospitals in Korea responded that they had experienced burnout at least once. To overcome this, the standardization of physicians' workloads, as well as improvements in the professional workflow are necessary to ensure a healthy lifestyle balance.

Pericardial Recess: Computed Tomography Findings of Varying Disorders (심낭오목: 다양한 질환에서의 CT 소견)

  • Jinho Seo;Youngtong Kim;Sungshick Jou;Chanho Park
    • Journal of the Korean Society of Radiology
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    • v.81 no.6
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    • pp.1364-1376
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    • 2020
  • A pericardial recess is frequently seen in patients undergoing chest computed tomography (CT). It is important to be aware of the normal anatomy of the pericardium as it is often mistaken for normal variants and/or disease. Therefore, we will describe the anatomy and location of the pericardial recess and the specific findings in various diseases associated with the pericardial recess.

Radiologic Findings of Mesonephric-Like Adenocarcinoma of the Uterine Corpus: A Case Report (자궁 체부에 발생한 중신 유사 선종의 영상 소견: 증례 보고)

  • Ha Jung Kim;Kyeong Ah Kim;Yikyeong Chun;Jeong Woo Kim;Jongmee Lee;Chang Hee Lee
    • Journal of the Korean Society of Radiology
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    • v.84 no.3
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    • pp.698-704
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    • 2023
  • According to the 2020 World Health Organization classification, mesonephric-like adenocarcinoma (MLA) is newly categorized as a subtype of endometrial carcinoma and remains a relatively unknown disease owing to its rarity. To the best of our knowledge, radiological findings of MLA have not been reported in the English literature. The uterine MLAs show a worse clinical prognosis and a more aggressive biological behavior than the usual endometrial carcinoma. Herein, we present the imaging findings of a 65-year-old female with a MLA in the uterine corpus. The tumor was a solid endometrial mass with deep myometrial invasion, poor contrast enhancement, and moderate diffusion restriction.

Breast Cancer after Radiation Therapy in a Patient with Li-Fraumeni Syndrome: A Case Report (Li-Fraumeni 증후군 환자에서 방사선 치료 후 발생한 유방암: 증례 보고)

  • In Na Yoon;Eun Suk Cha;Jeoung Hyun Kim;Jee Eun Lee;Jin Chung
    • Journal of the Korean Society of Radiology
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    • v.83 no.1
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    • pp.246-251
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    • 2022
  • Li-Fraumeni syndrome (LFS) is an inherited autosomal-dominant tumor-predisposition disorder caused by germline mutations in the TP53 tumor suppressor gene. Since patients with LFS are likely to develop therapy-related cancers, radiation therapy should be avoided if breast cancer is found in these individuals. Herein, we present a case of secondary breast cancer in an LFS patient after radiation and chemotherapy for the first diagnosed breast sarcoma.

Radiologic Review of Small Bowel Malignancies and Their Mimicking Lesions (소장의 악성 종양과 악성 종양으로 오인할 수 있는 소장 병변에 대한 영상의학적 검토)

  • Jong Soo Lee;So Hyun Park;Seung Joon Choi
    • Journal of the Korean Society of Radiology
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    • v.84 no.1
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    • pp.110-126
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    • 2023
  • Because of their small size, small bowel malignancies are often easily missed when radiologists read CT images, which can lead to errors in the normal small bowel due to their similar enhancement to the small bowel or non-specific enhancement. In addition, small bowel malignancies are sometimes mistaken for masses of other origins, such as the uterus, rectum, or omentum. In this article, we describe various small-bowel malignancies, their mimicking lesions and the typical and atypical features on CT imaging along with their clinical manifestations.

Cerebrovascular Reservoir and Arterial Transit Time Changes Assessed by Acetazolamide-Challenged Multi-Phase Arterial Spin Labeling Perfusion MRI in Chronic Cerebrovascular Steno-Occlusive Disease (만성 뇌혈관 협착폐색증에서 아세타졸아미드 부하 다상 동맥스핀표지 자기공명관류영상으로 평가한 뇌혈류 예비능과 동맥 통과 시간의 변화)

  • Inpyeong Hwang;Chul-Ho Sohn;Keun-Hwa Jung;Eung Koo Yeon;Ji Ye Lee;Roh-Eul Yoo;Koung Mi Kang;Tae Jin Yun;Seung Hong Choi;Ji-hoon Kim
    • Journal of the Korean Society of Radiology
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    • v.82 no.3
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    • pp.626-637
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    • 2021
  • Purpose To explore cerebrovascular reservoir (CVR) and arterial transit time (ATT) changes using acetazolamide-challenged multi-phase arterial spin labeling (MP-ASL) perfusion-weighted MRI in chronic cerebrovascular steno-occlusive disease. Materials and Methods This retrospective study enrolled patients with chronic steno-occlusion who underwent acetazolamide-challenged MP-ASL between June 2019 and October 2020. Cerebral blood flow, CVR, basal ATT, and ATT changes associated with severe stenosis, total occlusion, and chronic infarction lesions were compared. Results There were 32 patients (5 with bilateral steno-occlusion) in our study sample. The CVR was significantly reduced during total occlusion compared with severe stenosis (26.2% ± 28.8% vs. 41.4% ± 34.1%, respectively, p = 0.004). The ATT changes were not significantly different (p = 0.717). The CVR was marginally lower in patients with chronic infarction (29.6% ± 39.1% vs. 38.9% ± 28.7%, respectively, p = 0.076). However, the ATT was less shortened in patients with chronic infarction (-54 ± 135 vs. -117 ± 128 ms, respectively, p = 0.013). Conclusion Acetazolamide-challenged MP-ASL provides an MRI-based CVR evaluation tool for chronic steno-occlusive disease.

Usefulness of MRI Scoring System for Differential Diagnosis between Xanthogranulomatous Cholecystitis and Wall-Thickening Type Gallbladder Cancer (황색육아종성 담낭염과 벽비후형 담낭암의 감별진단을 위한 자기공명영상 점수체계의 유용성)

  • Soul Han;Young Hwan Lee;Youe Ree Kim;Eun Gyu Soh
    • Journal of the Korean Society of Radiology
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    • v.85 no.1
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    • pp.147-160
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    • 2024
  • Purpose To define an MRI scoring system for differentiating xanthogranulomatous cholecystitis (XGC) from wall-thickening type gallbladder cancer (GBC) and compare the diagnostic performance of the scoring system with the visual assessment of radiologists. Materials and Methods We retrospectively analyzed 23 and 35 patients who underwent abdominal MRI and were pathologically diagnosed with XGC and wall-thickening-type GBC after surgery, respectively. Three radiologists reviewed all MRI findings. We defined a scoring system using these MRI findings for differentiating XGC from wall-thickening type GBC and compared the area under the curve (AUC) of the scoring system with the visual assessment of radiologists. Results Nine MRI findings showed significant differences in differentiating the two diseases: diffuse gallbladder wall thickening (p < 0.001), mucosal uniformity (p = 0.002), intramural T2-high signal intensity (p < 0.001), mucosal retraction (p = 0.016), gallbladder stones (p < 0.001), T1-intermediate to high-signal intensity (p = 0.033), diffusion restriction (p = 0.005), enhancement pattern (p < 0.001), and phase of peak enhancement (p = 0.008). The MRI scoring system showed excellent diagnostic performance with an AUC of 0.972, which was significantly higher than the visual assessment of the reviewers. Conclusion The MRI scoring system showed better diagnostic performance than the visual assessment of radiologists to differentiate XGC from wall-thickening-type GBC.