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손민지,유승민,Charles S White 대한영상의학회 2021 대한영상의학회지 Vol.82 No.2
While there is a high prevalence of patent foramen ovale in adults, paradoxical embolism via a patent foramen ovale is rare. Previous echocardiographic studies indicated that paradoxical embolism might only occur in patients with high-risk features of patent foramen ovale (i.e., large defect size, presence of a Eustachian valve, and high right atrial pressure). Here, we present a case of patent foramen ovale with high-risk CT features for paradoxical embolism.
Current Concepts in Cardiac CT Angiography for Patients With Acute Chest Pain
유승민,노지영,이화연,송인섭,문재연,Charles S White 대한심장학회 2010 Korean Circulation Journal Vol.40 No.11
This article presents specific examples of delayed diagnosis of acute coronary syndrome, acute aortic dissection, and pulmonary embolism resulting from evaluating patients with nonspecific acute chest pain who did not undergo immediate dedicated coronary CT angiography (CTA) or triple rule-out protocol (TRO). These concrete examples of delayed diagnosis may advance the concept of using cardiac CTA (i.e., dedicated coronary CTA versus TRO) to triage patients with nonspecific acute chest pain. This article also provides an overall understanding of how to choose the most appropriate examination based on the specific clinical situation in the emergency department (i.e., dedicated coronary CTA versus TRO versus dedicated pulmonary or aortic CTA), how to interpret the CTA results, and the pros and cons of biphasic versus triphasic administration of intravenous contrast material during TRO examination. A precise understanding of various cardiac CTA protocols will improve the diagnostic performance of radiologists while minimizing hazards related to radiation exposure and contrast use.
유승민,이화연,김성목,양동현,정정임,Charles S White 대한영상의학회 2017 대한영상의학회지 Vol.77 No.6
Atherosclerotic coronary artery disease (CAD) is a leading cause of morbidity and mortality globally. Because of its remarkable technological advances, a coronary computed tomography angiography (CTA) is now a crucial imaging tool in the evaluation of patients with nonspecific acute and stable chest pain. This review article provides an overview of atherosclerotic CAD, the pros and cons of CTAs as compared to competing imaging modalities, and the potential remedies to overcome drawbacks of CTAs.
Mukul Bhatarai,Gregory Yost,Christopher W Good,Charles F White,Hitekshya Nepal 대한흉부외과학회 2014 Journal of Chest Surgery (J Chest Surg) Vol.47 No.2
Cardiac tamponade due to purulent pericarditis with a characteristic greenish fluid is rare in this antibiotic era. It is highly fatal despite early diagnosis and advanced treatment. Gram-positive cocci are the leading cause of purulent pericarditis, which usually results from a direct or hematogenous spread of organisms to the pericardium from the primary foci of infection. We describe an index case of rapidly developing pericardial tamponade caused by oropharyngeal polymicrobial infection in the absence of a primary source of infection in a 62-year-old man, who was successfully managed with emergency large-volume pericardiocentesis followed by pericardiectomy.