1.Congenital Heart Disease: a Pictorial Illustration of Putting Segmental Approach into Practice.
Tse Hang YEUNG ; Eun Ah PARK ; Ying Cheong LEE ; Jin Young YOO ; Choi Yu LUI
Investigative Magnetic Resonance Imaging 2015;19(4):205-211
The human heart is a complex organ in which many complicated congenital defects may happen and some of them require surgical intervention. Due to the vast complexity of varied anatomical presentations, establishing an accurate and consistent nomenclature system is utmost important to facilitate effective communication among pediatric cardiologists, cardiothoracic surgeons and radiologists. The Van Praagh segmental approach to the complex congenital heart disease (CHD) was developed in the 1960s and has been used widely as the language for describing complex anatomy of CHD over the decades. It utilizes a systematic and sequential method to describe the cardiac segments and connections which in turn allows accurate, comprehensive and unambiguous description of CHD. It can also be applied to multiple imaging modalities such as echocardiogram, cardiac CT and MRI. The Van Praagh notation demonstrates a group of three letters, with each letter representative for a key embryologic region of cardiac anatomy: the atria, ventricles and great vessels. By using a 3-steps approach, we can evaluate complex CHD precisely and have no difficulties in communicating with other medial colleague. This pictorial essay revisits the logical steps of segmental approach, followed by a pictorial illustration of its application.
Congenital Abnormalities
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Heart
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Heart Defects, Congenital*
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Humans
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Logic
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Magnetic Resonance Imaging
2.Renal and Splenic Micro-Infarctions Following Bronchial Artery Embolization with Tris-Acryl Microspheres.
Ka Fai Johnny MA ; Wing Hang WONG ; Choi Yu Dilys LUI ; Lik Fai CHENG
Korean Journal of Radiology 2009;10(1):97-99
A bronchial artery embolization (BAE) is an important therapeutic method used to control acute and chronic hemoptysis. We report a case of multiple micro-infarcts involving both the kidneys and spleen, following a BAE with 500-700 micrometer crossed-linked tris-acryl microspheres (Embospheres) in a patient with bronchial artery pulmonary vein shunts. The superior penetration characteristics of the microspheres may have resulted in the greater tendency to cross the bronchial artery pulmonary vein shunts, which subsequently caused the systemic infarcts in our patient. We propose the use of larger sized microspheres (700-900 micrometer), which may aid in avoiding this complication.
Acrylic Resins/*adverse effects/therapeutic use
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Adult
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*Bronchial Arteries
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Embolization, Therapeutic/*adverse effects
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Female
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Gelatin/*adverse effects/therapeutic use
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Hemoptysis/therapy
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Humans
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Infarction/*etiology/radiography
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Kidney/*blood supply
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Splenic Infarction/*etiology/radiography