semi-quantitative segmental perfusion scoring in myocardial perfusion spect: visual vs. automated analysis
نویسندگان
چکیده
introduction: it is recommended that the physician apply at least a semi-quantitative segmental scoring system in myocardial perfusion spect. we aimed to assess the agreement between automated semi-quantitative analysis using qps (quantitative perfusion spect) software and visual approach for calculation of summed stress score (sss), summed rest score (srs) and summed difference score (sds). methods: we retrospectively studied 1782 consecutive patients who had undergone two-day stress-rest tc99m-mibi myocardial perfusion spect. based on 17-segment 5-scale scoring system, sss, srs and sds were calculated visually and using qps software. results: there was good correlation between visual analysis and qps software in calculation of sss and srs and a fair correlation for sds. however, there was statistically significant difference between two methods. by bland-altman analyses mean value of the differences (estimated bias) differs significantly from 0 on the basis of 1-sample t-test. based on bias, precision and 95% limits of agreement, discrepancies between measurements indicate no agreement equally through the range of measurements, so there is a proportional bias. based on sss, srs and sds ≤3 and sss, srs and sds >3, there was fair concordance between the visual assessment and automated qps calculation. kappa statistics was 0.41 (p
منابع مشابه
Semi-quantitative segmental perfusion scoring in myocardial perfusion SPECT: visual vs. automated analysis
Introduction: It is recommended that the physician apply at least a semi-quantitative segmental scoring system in myocardial perfusion SPECT. We aimed to assess the agreement between automated semi-quantitative analysis using QPS (quantitative Perfusion SPECT) software and visual approach for calculation of summed stress score (SSS), summed rest score (SRS) and summed difference score (SDS). ...
متن کاملMyocardial perfusion SPECT: Perfusion quantification
Different software tools for quantification of myocardial perfusion SPECT (MPS) studies are routinely used. Several perfusion parameters can be computed automatically. Interpretation of the MPS should start with visual inspection of the rotating planar images, visual analysis of reconstructed SPECT slices and then quantitative analysis to confirm the visual impression. Quantification should be...
متن کاملmyocardial perfusion spect: perfusion quantification
different software tools for quantification of myocardial perfusion spect (mps) studies are routinely used. several perfusion parameters can be computed automatically. interpretation of the mps should start with visual inspection of the rotating planar images, visual analysis of reconstructed spect slices and then quantitative analysis to confirm the visual impression. quantification should be...
متن کاملMyocardial perfusion SPECT: Perfusion quantification
Different software tools for quantification of myocardial perfusion SPECT (MPS) studies are routinely used. Several perfusion parameters can be computed automatically. Interpretation of the MPS should start with visual inspection of the rotating planar images, visual analysis of reconstructed SPECT slices and then quantitative analysis to confirm the visual impression. Quantification should be ...
متن کاملEvaluation of myocardial perfusion and function after kidney transplantation by Gated SPECT myocardial perfusion scintigraphy
Introduction: The aim of this study was to evaluate the effect of successful kidney transplantation (KT) on myocardial perfusion and left ventricular function by both qualitative (visual) interpretation and semiquantitative parameters, using myocardial perfusion scintigraphy with gated-single photon emission computed tomography (gated-SPECT) in patients suffering from end-stage renal disease. ...
متن کاملGated myocardial perfusion SPECT in patients with kidney transplantation: Semi-quantification
Abstract is NOT available.
متن کاملمنابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
iranian journal of nuclear medicineناشر: tehran university of medical sciences
ISSN 1681-2824
دوره 22
شماره 2 2014
میزبانی شده توسط پلتفرم ابری doprax.com
copyright © 2015-2023