Diagnostic performance of CT findings for bowel ischemia and necrosis in closed-loop small-bowel obstruction.

Purpose: The aim of this study was to investigate the diagnostic performance of contrast-enhanced CT (CECT) findings for bowel ischemia and necrosis in closed-loop small-bowel obstruction (CL-SBO).

Materials And Methods: Thirty-five patients with CL-SBO confirmed by laparotomy (n = 34) or multiplanar reconstruction of thin slice CT images (n = 1) were included. Based on the surgical and clinical findings, these patients were classified into three groups: necrosis group (n = 16), ischemia without necrosis group (n = 11), and no-ischemia group (n = 8).

Local recurrence after chemoembolization of hepatocellular carcinoma: uptake of gadoxetic acid as a new prognostic factor.

Objective: The purpose of this article is to investigate whether there is a difference in susceptibility to transcatheter arterial chemoembolization between hepatocellular carcinomas (HCCs) showing high uptake and those showing low uptake of gadoxetic acid in the hepatobiliary phase of MRI.

Materials And Methods: One hundred HCCs that achieved optimal chemoembolization, as assessed by immediate CT in 60 patients, were classified as having high (n = 19) or low (n = 81) uptake of gadoxetic acid on MRI performed before chemoembolization. The local recurrence rates were estimated using the Kaplan-Meier method, and differences between the groups were compared using the log-rank test.

Peri-stent aneurysm formation following a stent implant for stenotic intracranial vertebral artery dissection: a technical report of two cases successfully treated with coil embolization.

Introduction: Although stenting for stenotic vertebral artery dissection (VAD) improves compromised blood flow, subsequent peri-stent aneurysm (PSA) formation is not well-known. We report two cases with PSA successfully treated with coil embolization.

Methods: Three patients with stenotic intracranial VAD underwent endovascular angioplasty at our institution because they had acute infarction in posterior circulation territory and clinical evidence of hemodynamic insufficiency.

Fatal paradoxical air embolism diagnosed by postmortem imaging and autopsy.

The recognition and visualization of an arterial gas embolism are difficult. We report a case of sudden death caused by paradoxical air embolism of coronary and cerebral arteries, diagnosed by the pre autopsy computed tomography (CT) scanning. A 54-year-old woman suddenly died after the self-removal of the jugular vein catheter.

Contrast-fluid level in the inferior vena cava (IVC niveau sign) in patients with acute type A aortic dissection: computed tomography findings during acute cardiac tamponade.

Purpose: The purpose of this study was to report a new computed tomography (CT) finding in acute cardiac tamponade: a contrast-fluid level in the hepatic inferior vena cava (IVC) during an arterial dominant phase CT study (IVC niveau sign) in patients with acute type A aortic dissection.

Materials And Methods: We retrospectively reviewed CT studies with the diagnosis of proximal aortic dissection (Stanford type A) with acute cardiac tamponade. There were 12 patients enrolled in the study (6 women, 6 men; mean age 66 years).

CT and clinical features of hemorrhage extending along the pulmonary artery due to ruptured aortic dissection.

The purpose was to evaluate CT findings of hemorrhage extending along the pulmonary artery (PA) due to ruptured aortic dissection (AD) and its prognostic factors. In 232 patients with Stanford type A AD, 21 patients (9.1%; 11 women; mean 70.

Iliopsoas muscle abscess secondary to sacral pressure ulcer treated with computed tomography-guided aspiration and continuous irrigation: a case report.

Iliopsoas abscess is an aggressive infection usually associated with Crohn's disease, spinal tuberculosis, a septic hip joint (including hip replacement), and spinal cord injury. It rarely occurs secondary to sacral pressure ulcer. The infection requires immediate surgical debridement or drainage.

Primary pericardial malignant fibrous histiocytoma causing cardiac tamponade.

We describe herein an extremely rare case of a large primary pericardial malignant fibrous histiocytoma causing a cardiac tamponade that occurred in a 72-year-old woman. The clinical, radiographic, and pathologic features are reported here together with a brief review of the literature.

Percutaneous radiofrequency ablation and transcatheter arterial chemoembolization for hypervascular hepatocellular carcinoma: rate and risk factors for local recurrence.

Purpose: To analyze local recurrence-free rates and risk factors for recurrence following percutaneous radiofrequency ablation (RFA) or transcatheter arterial chemoembolization (TACE) for hypervascular hepatocellular carcinoma (HCC).

Methods: One hundred and nine nodules treated by RFA and 173 nodules treated by TACE were included. Hypovascular nodules were excluded from this study.

Two cases of hepatopulmonary syndrome with improved liver function following long-term oxygen therapy.

Hepatopulmonary syndrome (HPS) is a complication of liver disease that is characterized by hypoxemia and intrapulmonary vascular dilatations. The only established therapy for this disorder is liver transplantation. Here, we report two patients (a 63-year-old woman and a 72-year-old man) with HPS associated with hepatitis C virus-related cirrhosis.

New development of an ulcerlike projection in aortic intramural hematoma: CT evaluation.

Purpose: To investigate the natural history and predictors of progression of a newly developed ulcerlike projection in patients with an aortic intramural hematoma.

Materials And Methods: Serial computed tomographic (CT) findings in 52 patients with intramural hematoma were reviewed. Sixteen patients had Stanford type A intramural hematoma, and 36 had Stanford type B.

Analysis of predictive factors for progression of type B aortic intramural hematoma with computed tomography.

Purpose: For patients with Stanford type B aortic intramural hematoma (IMH), medical treatment is usually selected. However, the outcomes of patients with type B IMH are not completely understood, and some cases can have fatal complications develop or surgical treatment necessitated. The purpose of this study was to investigate predictors of progression of the affected aorta in patients with type B IMH with initial computed tomography (CT) images.