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Fig. 1 | BMC Medical Imaging

Fig. 1

From: Reproducibility and feasibility of optic nerve diffusion MRI techniques: single-shot echo-planar imaging (EPI), readout-segmented EPI, and reduced field-of-view diffusion-weighted imaging

Fig. 1

Examples of quantitative optic nerve measurements. a Measurement of ADC values. Three ROIs were measured on each side. b, Measurement of ADC values. Three ROIs were measured on the left side, along with (left to right) images of ADC map of rs-EPI DWI, ADC map of rFOV-EPI DWI and ADC map of ss-EPI DWI, respectively; c the length of the intraorbital segment of the optic nerve is shown, along with (left to right) images of T2w, rs-EPI DWI at b value = 1000 s/mm2, rFOV-EPI DWI at b value = 1000 s/mm2 and ss-EPI DWI at b value = 1000 s/mm2 (respectively); d Maximum angles of the optic nerve are shown, along with (left to right) images of T2w, rs-EPI DWI at b value = 1000 s/mm2, rFOV-EPI DWI at b value = 1000 s/mm2 and ss-EPI DWI at b value = 1000 s/mm2 (respectively). Compared with the T2w images, the DWI images had different degrees of distortion, and the angle of the optic nerve became smaller. ADC, apparent diffusion coefficient; rs-EPI DWI, readout-segmented echo-planar imaging diffusion-weighted imaging; rFOV, reduced field-of-view; ss-EPI, single-shot echo-planar imaging

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BMC Medical Imaging

ISSN: 1471-2342

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