Objective To investigate the application differences of readout segmentation of long variable echo trains and turbo gradient and spin echo BLADE diffusion weighted imaging in scanning of sellar lesions.Methods Eighty-three patients with sellar lesions were retrospectively chosen in the period from January 2020 to June 2022 in our hospital and the segmented readout plane and the knife-edge technique were scanned by fast gradient spin echo diffusion weighted imaging on the basis of conventional MR.The subjective and objective evaluation indexes of image quality of sellar lesions using two kinds of echo diffusion weighted imaging were compared and then the consistency of subjective indexes was analyzed.Results There was high degree of consistency in the subjective scores of the scanning image quality of the segmented readout plane and the blade technique between two professional radiologists,with Kappa values of 0.73,1.00 and 0.72,0.98,respectively.The subjective scores of normal structure,sensitivity artifact,distortion,sharpness and overall image quality in the sellar region scanned by turbo gradient and spin echo BLADE diffusion weighted imaging with blade technique were significantly higher than those of readout segmentation of long variable echo trains diffusion weighted imaging(Z=-3.035,-5.035,-6.117,-5.361,-4.587,-3.358,-4.035,-5.125,all P＜0.001).The maximum longitudinal and transverse diameters of sellar lesions detected by turbo gradient and spin echo BLADE diffusion weighted imaging were significantly less than those detected by readout segmentation of long variable echo trains diffusion weighted imaging(t=3.608、4.702,all P＜0.001).Conclusion Compared with readout segmentation of long variable echo trains,turbo gradient and spin echo BLADE diffusion weighted imaging in scanning of sellar lesions can effectively improve the scanning image quality of sellar lesions,and has obvious advantages in reducing distortion,improving image sharpness,and accurately displaying the lesions and surrounding normal structures.
Magnetic resonance imagingSellar turcicaDiffusion weighted imaging
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NSTL
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