期刊
RADIOLOGY-CARDIOTHORACIC IMAGING
卷 5, 期 2, 页码 -出版社
RADIOLOGICAL SOC NORTH AMERICA (RSNA)
DOI: 10.1148/ryct.220318
关键词
Transcatheter Aortic Valve Replacement; Cardiac; Coronary Arteries; Heart; Valves; Photon-counting Detector CT
Photon-counting detector CT (PCD CT) has gained increasing attention in cardiothoracic imaging due to its high spatial resolution and spectral imaging capability. It has the potential to address the limitations of current CT technology and provide improved image quality and detailed anatomical information for patients before and after TAVR.
Photon-counting detector CT (PCD CT) has increasingly garnered interest in cardiothoracic imaging due to its high spatial resolution and ability to perform spectral imaging. CT plays an important role in the planning and postprocedural assessment of transcatheter aortic valve replacement (TAVR). Limitations of current CT technology resulting in blooming and metal artifacts may be addressed with PCD CT. This case series demonstrates the potential advantages of PCD CT in patients prior to and post-TAVR. In TAVR planning, PCD CT allowed for a detailed depiction of the aortic valve, aortic root, coronary arteries, and potential vascular access routes. The high-spatial-resolution reconstruc-tions enabled assessment of hypoattenuating leaflet thickening and periprosthetic leakage for prosthetic valves. This study shows promising initial results, but further research is needed to determine the clinical impact of PCD CT in patients prior to and post-TAVR. (c) RSNA, 2023
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