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DOI:10.2214/AJR.08.1488
AJR 2009; 192:W255-W263
© American Roentgen Ray Society

Pictorial Essay

Centerline Analysis of Aortic CT Angiographic Examinations: Benefits and Limitations

Fabian Rengier1,2, Tim F. Weber1,2, Frederik L. Giesel1, Dittmar Böckler3, Hans-Ulrich Kauczor2 and Hendrik von Tengg-Kobligk1,4

1 Department of Radiology, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, 69120 Heidelberg, Germany.
2 Department of Diagnostic and Interventional Radiology, University Hospital Heidelberg, Heidelberg, Germany.
3 Department of Vascular and Endovascular Surgery, University Hospital Heidelberg, Heidelberg, Germany.
4 Department of Radiology, The Ohio State University, Columbus, OH.

OBJECTIVE. The purpose of our study was to illustrate workflow, benefits, and limitations of centerline analysis compared with double oblique multiplanar reformations using aortic CT angiography data.

CONCLUSION. Semiautomatic centerline analysis is beneficial for the assessment of aortic geometry and allows precise measurements of aortic diameters and lengths. It can be simple, fast, and reproducible, but it should be used with care considering its inherent limitations. Manually adjusted multiplanar reformations remain an essential tool for intuitive visualization of the vascular anatomy.

Keywords: aorta • centerline analysis • computer-assisted • image processing • three-dimensional imaging • spiral CT


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