Noninvasive assessment of left main coronary stent patency with 16-slice computed tomography

Diagnostic value of the 16‐detector row multislice spiral computed tomography for the detection of coronary artery stenosis in comparison to invasive coronary angiography

“…This result is consistent with the findings of two other studies. 15,16 Although novel 64-slice MSCT scanner generation has recently been introduced, most MSCT coronary angiographies are still performed with the 16-slice scanner generation. 1,2 The better spatial and temporal resolution of a 64-slice scanner is an advantage.…”

Noninvasive Assessment of In-Stent Restenosis of the Coronary Artery with Using 16-Slice Computed Tomography

“…The most important and frequent problem in coronary artery imaging has been motion artifacts. Evaluation of in-stent restenosis with MSCT was not feastable for those patients with arrhythmia and high heart rates (6,8). However, motion artifacts can be controlled by reducing the heart rate with -blockers, and by employing multi-cyclic segmented reconstruction and an optimized reconstruction window for the cardiac phase with minimal motion.…”

“…Gilard et al (6) reported that 93% of stainless steel stents were analyzable without any serious partial volume effect or beam hardening. Calcification was another important factor that induced beam hardening artifacts and partial volume effects (6,10). In our present study, two of the false negative cases (40%) had severe calcification around the stents.…”

“…Several studies have recently reported improved visualization of in-stent stenosis by using 16-slice CT (6)(7)(8)(9)(10)(11). However, even with using 16-slice CT, clear delineation of in-stent restenosis on visual assessment was not consistently possible.…”

The ‘what, when, where, who and how?’ of cardiac computed tomography in 2009: Guidelines for the clinician

“…Studies have shown that a significant proportion (up to 42%) of stents are nonevaluable and the assessment for instent restenosis remains poor (22). Larger stents (greater than 3.5 mm in diameter), including left main stents, can be assessed more accurately (23)(24)(25).…”