Spiral T1 Spin-Echo for Routine Postcontrast Brain MRI Exams: A Multicenter Multireader Clinical Evaluation.

Autor:	Ooi MB; From Philips Healthcare (M.B.O., I.E.D., H.T.F., Q.L., H.W., Y.W., Y.Z.) melvyn.ooi@philips.com., Li Z; Gainesville, Florida; Barrow Neurological Institute (Z.L., A.G.A., N.R.Z., J.P.K.)., Robison RK; Rochester, Minnesota; Phoenix Children's Hospital (R.K.R., M.T., H.H.H., J.H.M.)., Wang D; Phoenix, Arizona; Mayo Clinic (D.W., J.G.P.)., Anderson AG 3rd; Gainesville, Florida; Barrow Neurological Institute (Z.L., A.G.A., N.R.Z., J.P.K.)., Zwart NR; Gainesville, Florida; Barrow Neurological Institute (Z.L., A.G.A., N.R.Z., J.P.K.)., Bakhru A; Buffalo, New York; Philips Healthcare (A.B., S.N., T.M.)., Nagaraj S; Buffalo, New York; Philips Healthcare (A.B., S.N., T.M.)., Mathews T; Buffalo, New York; Philips Healthcare (A.B., S.N., T.M.)., Hey S; Bangalore, India; Philips Healthcare, (S.H., J.J.K.), Best, the Netherlands., Koonen JJ; Bangalore, India; Philips Healthcare, (S.H., J.J.K.), Best, the Netherlands., Dimitrov IE; From Philips Healthcare (M.B.O., I.E.D., H.T.F., Q.L., H.W., Y.W., Y.Z.)., Friel HT; From Philips Healthcare (M.B.O., I.E.D., H.T.F., Q.L., H.W., Y.W., Y.Z.)., Lu Q; From Philips Healthcare (M.B.O., I.E.D., H.T.F., Q.L., H.W., Y.W., Y.Z.)., Obara M; Philips Healthcare (M.O.), Tokyo, Japan., Saha I; Philips Healthcare (I.S.), Gurgaon, India., Wang H; From Philips Healthcare (M.B.O., I.E.D., H.T.F., Q.L., H.W., Y.W., Y.Z.)., Wang Y; From Philips Healthcare (M.B.O., I.E.D., H.T.F., Q.L., H.W., Y.W., Y.Z.)., Zhao Y; From Philips Healthcare (M.B.O., I.E.D., H.T.F., Q.L., H.W., Y.W., Y.Z.)., Temkit M; Rochester, Minnesota; Phoenix Children's Hospital (R.K.R., M.T., H.H.H., J.H.M.)., Hu HH; Rochester, Minnesota; Phoenix Children's Hospital (R.K.R., M.T., H.H.H., J.H.M.)., Chenevert TL; University of Michigan (T.L.C.), Ann Arbor, Michigan., Togao O; Kyushu University Hospital (O.T.), Kyushu, Japan., Tkach JA; Cincinnati Children's Hospital (J.A.T., U.D.N.), Cincinnati, Ohio., Nagaraj UD; Cincinnati Children's Hospital (J.A.T., U.D.N.), Cincinnati, Ohio., Pinho MC; University of Texas Southwestern Medical Center (M.C.P.), Dallas, Texas., Gupta RK; Fortis Memorial Research Institute (R.K.G.), Gurgaon, India., Small JE; Lahey Hospital and Medical Center (J.E.S., M.M.K.), Burlington, Massachusetts., Kunst MM; Lahey Hospital and Medical Center (J.E.S., M.M.K.), Burlington, Massachusetts., Karis JP; Gainesville, Florida; Barrow Neurological Institute (Z.L., A.G.A., N.R.Z., J.P.K.)., Andre JB; University of Washington (J.B.A.), Seattle, Washington., Miller JH; Rochester, Minnesota; Phoenix Children's Hospital (R.K.R., M.T., H.H.H., J.H.M.)., Pinter NK; Phoenix, Arizona; DENT Neurologic Institute (N.K.P.)., Pipe JG; Phoenix, Arizona; Mayo Clinic (D.W., J.G.P.).
Jazyk:	angličtina
Zdroj:	AJNR. American journal of neuroradiology [AJNR Am J Neuroradiol] 2020 Feb; Vol. 41 (2), pp. 238-245. Date of Electronic Publication: 2020 Feb 06.
DOI:	10.3174/ajnr.A6409
Abstrakt:	Background and Purpose: Spiral MR imaging has several advantages compared with Cartesian MR imaging that can be leveraged for added clinical value. A multicenter multireader study was designed to compare spiral with standard-of-care Cartesian postcontrast structural brain MR imaging on the basis of relative performance in 10 metrics of image quality, artifact prevalence, and diagnostic benefit. Materials and Methods: Seven clinical sites acquired 88 total subjects. For each subject, sites acquired 2 postcontrast MR imaging scans: a spiral 2D T1 spin-echo, and 1 of 4 routine Cartesian 2D T1 spin-echo/TSE scans (fully sampled spin-echo at 3T, 1.5T, partial Fourier, TSE). The spiral acquisition matched the Cartesian scan for scan time, geometry, and contrast. Nine neuroradiologists independently reviewed each subject, with the matching pair of spiral and Cartesian scans compared side-by-side, and scored on 10 image-quality metrics (5-point Likert scale) focused on intracranial assessment. The Wilcoxon signed rank test evaluated relative performance of spiral versus Cartesian, while the Kruskal-Wallis test assessed interprotocol differences. Results: Spiral was superior to Cartesian in 7 of 10 metrics (flow artifact mitigation, SNR, GM/WM contrast, image sharpness, lesion conspicuity, preference for diagnosing abnormal enhancement, and overall intracranial image quality), comparable in 1 of 10 metrics (motion artifacts), and inferior in 2 of 10 metrics (susceptibility artifacts, overall extracranial image quality) related to magnetic susceptibility ( P < .05). Interprotocol comparison confirmed relatively higher SNR and GM/WM contrast for partial Fourier and TSE protocol groups, respectively ( P < .05). Conclusions: Spiral 2D T1 spin-echo for routine structural brain MR imaging is feasible in the clinic with conventional scanners and was preferred by neuroradiologists for overall postcontrast intracranial evaluation. (© 2020 by American Journal of Neuroradiology.)
Databáze:	MEDLINE
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