Real-time volumetric imaging of human heart without electrocardiographic gating by 256-detector row computed tomography: Initial experience

Chisato Kondo*, Shinichiro Mori, Masahiro Endo, Kiyoko Kusakabe, Naoki Suzuki, Asaki Hattori, Masahiro Kusakabe

*この研究の対応する著者

研究成果: Article査読

48 被引用数 (Scopus)

抄録

Objective: The feasibility of human cardiac imaging using a prototype 256-detector row cone-beam computed tomography (256CBCT) scanner without electrocardiographic gating was examined. Methods: Two healthy male volunteers were examined by contrast-enhanced 256CBCT. The number of detectors was 912 × 256, each measuring approximately 0.5 mm × 0.5 mm at the center of rotation. The craniocaudal coverage was approximately 100 mm after reconstruction by the Feldkamp-Davis-Kress algorithm. The effective time resolution was 500 milliseconds using a half-scan algorithm. Results: Serial enhancement of the left ventricular myocardium was detected. The right and left coronary arteries at proximal and distal segments were depicted without significant blurring. Although the left ventricular wall motion on cine images was not smooth over time, it was possible to measure ventricular volume and ejection fraction. Conclusions: Using the 256CBCT, it was possible to visualize the coronary arteries, myocardial perfusion, and ventricular contraction simultaneously during a single acquisition.

本文言語English
ページ(範囲)694-698
ページ数5
ジャーナルJournal of Computer Assisted Tomography
29
5
DOI
出版ステータスPublished - 2005
外部発表はい

ASJC Scopus subject areas

  • 放射線学、核医学およびイメージング

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