Comparing changes in TIMI flow grades and the CTFC before and after stent implantation (after stent implantation and at 6 month angiography), CTFC detects flow changes in 46% (40%) of the patients, which were not detected with TIMI Flow Classification.ĬONCLUSION: The TIMI Flow Classification grading system is not able to separate clearly between completely perfused and partially perfused coronary artery vessels. Those patients with both epicardial TIMI grade 3 flow and myocardial perfusion grade 3 flow (successful epicardial and tissue-level perfusion) had a low mortality rate of 0.73 (1/137), whereas those with grades of 0 or 1 for both TIMI epicardial flow and myocardial perfusion had a mortality rate of 10.9 (14 of 129 patients) (Figure 4). For CTFC values between 30 and 69 frames, TIMI grades 3 and 2 flow overlap. Analysis of the CTFC in patients with TIMI flow grades 3 and 2 demonstrated that for CTFC values lower than 30 frames, all patients had TIMI flow grade 3, while for CTFC values greater than 69 frames no patient had TIMI grade 3 flow. METHODS: TIMI flow grades and corrected TIMI frame counts (CTFC) were determined in 102 patients before, after stent implantation and at 6-month angiography. AIMS: We compared the qualitative Thombolysis in Myocardial Infarction (TIMI) Flow Classification with a new quantitative method, the TIMI Frame Count, to investigate the differences of both systems in detecting coronary flow changes after stent implantation. Angiography demonstrates characteristics such as reduced contrast density, haziness, irregular lesion contour, or a smooth convex 'meniscus' at the site of total occlusion suggestive but not diagnostic of thrombus.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |