Accuracy of dual-source computed tomography in quantitative assessment of low density coronary stenosis—a motion phantom study

Abstract

DSCT enables highly reproducible quantification of low density stenosis, but underestimates the degree of stenosis, especially in small vessels. Area-based measurements reflect the true degree of stenosis with higher accuracy than diameter.

The effect of heart rate, vessel angulation and acquisition protocol on the estimation accuracy of calcified artery stenosis in dual energy cardiac CT: A phantom study

“…3). This finding is in consistence with previous studies and consensus clinical perception in CCTA [15][16][17]. As recommended by the reference protocol guide, to minimize artifacts due to cardiac motion for heart rates above 75 bpm, protocol C should be employed [12].…”

Accuracy of coronary computed tomography angiography for bioresorbable scaffold luminal investigation: a comparison with optical coherence tomography

“…The main limitation of this study in the inclusion of noncomplex, non-calcified lesion in which coronary CTA has proven to have higher accuracy; therefore, this finding should be confirmed in a more complex population [22]. Also, the low incidence of in-scaffold restenosis limits the conclusion of this analysis to patent scaffolds.…”

Clinical Evaluation of Coronary In‐Stent Restenosis Using Dual‐Source Computed Tomography

“…However, ISR has become an increasingly serious complication and has consequently become a focus of intervention therapy. 13,14 ISR Assessment by DSCT in Patients with Atrial Fibrillation: Presently, both foreign and domestic studies of the evaluation of coronary ISR with DSCT are more focused on patients with regular rhythms. Compared with fluoroscopy, CT has been shown to be markedly more sensitive for detecting gaps between multiple stents (16.9 vs. 1.0%), which have been shown to be associated with ISR.…”

“…12 However, our study showed no need for drugs to control heart rate and demonstrated that DSCT could obtain satisfactory imaging quality for coronary examination purposes; this was consistent with the findings of other studies. 13,14 ISR Assessment by DSCT in Patients with Atrial Fibrillation: Presently, both foreign and domestic studies of the evaluation of coronary ISR with DSCT are more focused on patients with regular rhythms. Because of heart rate fluctuations and variability in patients with arrhythmia, artifacts would easily be generated.…”