ד"ר דני פינק, עורך האתר החדש בחר להציג מאמר זה באתר האיגוד בשל חשיבותו בתקופה זו כשהוא מוסיף שזהו מאמר חשוב מאוד ומאד יסודי לכל העוסקים במלאכת ניתוחי אבי העורקים! 

Discrepancies in Measurement of the Thoracic Aorta: JACC Review Topic of the Week

Highlights
•  Ascending aortic measurements are often discrepant between or within the modalities of CT, MRI, and echo.

•  Discrepancies arise from image formatting, diameter definition, irregular aortic contour, and inconsistent reporting patterns.

•  The impact of the following specific factors is explored:
○ Gated or nongated study? Contrast or no contrast study? Wall or no wall? Systole or diastole?

○ Hand measurement or automated centerline measurement?

○ Oblique or orthogonal? Smallest or largest diameter?

○ For the aortic root: sinus-to-commissure or sinus-to-sinus measurement?

Abstract
Clinicians often encounter discrepant measurements of the ascending aorta that impede, complicate, and impair appropriate clinical assessment—including key issues of presence or absence of aortic growth, rate of growth, and need for surgical intervention. These discrepancies may arise within a single modality (computed tomography scan, magnetic resonance imaging, or echocardiography) or between modalities. The authors explore the origins and significance of these discrepancies, revealing that some “truth” usually underlies all the discrepant measurements, which individually look at the ascending aorta with different perspectives and dimensional definitions. The authors conclude with a practical “question and answer” section that addresses common specific issues in interpretation and management of patients in the real-world setting.

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