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- W4380204544 abstract "Purpose: The performance ability of position logic circuitry of gamma-camera to superimpose the X–Y gains obtained from different pulse height analyzers is multiple window spatial registration (MWSR). This study was conducted to evaluate the feasibility of dual-tracer method using 99mTc and 131I to assess MWSR. Materials and Methods: The procedure was carried out on a dual-head gamma-camera with rectangular NaI (Tl) crystal using a point source containing 99mTc pertechnetate and 131I-NaI. Pixel coordinates, full width at half-maximum of point spread function at 364 keV and 140 keV, and pixels with maximum count of images for dual detectors were analyzed and compared. Results: The experiment demonstrated an excellent correlation between the X and Y coordinates identified on 364 keV and 140 keV images (Spearman’s coefficient of rank correlation: 0.9, P < 0.0001). Intraclass correlation of studies performed on two separate occasions showed a good correlation (k = 0.87) demonstrating the reproducibility of the procedure. Conclusion: Dual-tracer method for evaluation of MWSR is a reproducible, accurate, and logical alternative to the routine National Electrical Manufacturers Association procedure." @default.
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- W4380204544 date "2023-01-01" @default.
- W4380204544 modified "2023-09-25" @default.
- W4380204544 title "Spatial recognition: A temporal tale of multiple window spatial registration" @default.
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- W4380204544 doi "https://doi.org/10.4103/ijnm.ijnm_145_22" @default.
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