Multiple publications have reported the normal limits of TID measurements with 99m Tc SPECT MPI including exercise and pharmacological stress as well as their diagnostic and prognostic utilities.

The upper normal limits were 1.19 for TID and 1.23 for TID ed as established in 259 LLk patients. Both ratios increased with disease severity (P<.0001). Incidence of abnormal TID increased from 2% in normal patients to > 36% in patients with severe CAD.

Transient ischemic dilatation (TID) of the left ventricle is a potential marker of high risk obstructive coronary artery disease on stress myocardial perfusion imaging (MPI). There is, however, interstudy variation in the diagnostic performance of ...

Upper reference limits for transient ischemic dilation (TID) have not been rigorously established for cadmium-zinc-telluride (CZT) camera systems. We aimed to derive TID limits for common myocardial perfusion imaging protocols utilizing a large, multi-center registry (REFINE SPECT).

Nov 20, 2012 · Methods: Normal limits for TID were defined by a group of 56 patients with low risk for CV disease (<10% Framingham Risk) stratified by gender.

The TID index upper normal limit was 1.15 and was calculated as mean+2 SD. Using this cut-off point, TID index had high specificity and PPV in the diagnosis of single vessel CAD (100% and 100% respectively) and multiple vessel CAD (93% and 85%, respectively).

Jun 28, 2016 · Non-attenuation-corrected, camera-, radiotracer-, and stress protocol-specific TID limits in supine position were derived from 97.5th percentile and mean + 2 standard deviations (SD).

TID limits ranged from 1.18 to 1.52 (97.5th percentile) and 1.18 to 1.39 (mean + 2SD). No difference was noted between D-SPECT and Discovery cameras (P = 0.71) while differences between exercise and vasodilator-based protocols (adenosine, regadenoson, or regadenoson-walk) were noted (all P < 0.05).

May 1, 2012 · Abnormal TID in 82Rb PET is associated with more extensive left ventricular dysfunction, ischemic compromise, and reduced global flow reserve. Preliminary outcome analysis suggests that TID-positive subjects have a lower overall survival probability.

Jun 10, 2016 · Multiple publications have reported the normal limits of TID measurements with 99m Tc SPECT MPI including exercise and pharmacological stress as well as their diagnostic and prognostic utilities.