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Table 1 Sequence components for WB-MRI at our institute and the recommendation of ONCO-RADS

From: Applying ONCO-RADS to whole-body MRI cancer screening in a retrospective cohort of asymptomatic individuals

Our institute

The recommendation of ONCO-RADS

Region

Sequence description

Region

Sequence description

Brain

Axial 5-mm-thick T2 FLAIR with fat suppression (TR ms/TE ms/Matrix, 8000/92/320 × 224)

Brain

Axial 4–5-mm-chick T2 FLAIR

Sagittal 1.5-mm-thick T1 MPRAGE with axial 1.5-mm-thick MPR (2000/2.49/256 × 256)

Whole -body

Axial 5-mm-thick T1 GRE with Dixon technique

Coronal 5-mm-thick T2 TSE (4800/88/448 × 314)

Axial 5-mm-thick T2 TSE

Axial 5-mm-thick DWI (b value = 0 and 1000 s/mm2) with corresponding ADC maps (5000/59/128 × 128)

Axial 5-mm-thick DWI (b value = 50–100 and 800–1000 s/mm2) with corresponding ADC maps, coronal MPR, and 3D MIP reconstruction (b value = 800–1000 s/mm2)

Sagittal 1.5-mm-thick CE T1 MPRAGE with axial and coronal 1.5-mm-thick MPR (2000/2.49/256 × 256)

Head and neck

Axial 3-mm-thick T2 TSE with fat suppression (5000/75/256 × 179)

Axial 3-mm-thick CE T1 GRE VIBE with fat suppression (3.78/1.55/320 × 240)

Chest

Axial, coronal, and sagittal 6-mm-thick T2 HASTE (1000/98/320 × 182)

Chest

Axial < 3-mm-thick T1 GRE VIBE with short echo time

Axial 3-mm-thick CE T1 GRE VIBE fat suppression with short echo time and coronal and sagittal 3-mm-thick MPR (1.63/3.53/320 × 208)

Abdomen and pelvis

Coronal 4-mm-thick T2 HASTE (900/126/320 × 224)

Abdomen

Axial 6-mm-thick T1 GRE with Dixon technique (150/1.23, 2.46/256 × 166)

Axial 6-mm-thick T1 TSE with fat suppression (200/1.23/256 × 154)

Axial 6-mm-thich heavily T2 TSE (900/166/320 × 208) with MR cholangiopancreatography (4500/735/284 × 269)

Axial 5-mm-thick DWI (b value = 0, 400, and 800 s/mm2) with corresponding ADC maps (6100/63/150 × 95)

Axial 3-mm-thick T1 GRE VIBE fat suppression with dynamic CE study and coronal 3-mm-thick MPR* (3.6/1.28/320 × 156)

Pelvis

Male

Axial, sagittal, and coronal 3-mm-thick T2 TSE (4280/95/384 × 346)

Axial 3-mm-thick DWI (b value = 0, 1000, and 2000 s/mm2) with corresponding ADC maps (5600/75/120 × 120)

Female

Axial 4-mm-thick T1 TSE (230/2.46/320 × 224)

Axial 4-mm-thick (4000/97/384 × 346) and sagittal 3-mm-thick T2 TSE (4850/117/320 × 320)

Both

Axial 6-mm-thick DWI (b value = 400 s/mm2) (6100/63/150 × 95)

Axial 3-mm-thick CE T1 GRE VIBE with fat saturation (3.5/1.53/256 × 186)

Spine

Sagittal 3-mm-thick T2 TSE (3000/93/320 × 256)

Spine

Sagittal 4–5-mm-thick T1 TSE

Sagittal 4–5-mm-thick T2 with fat suppression or STIR

  1. WB-MRI = whole-body magnetic resonance imaging; ONCO-RADS = Oncologically Relevant Findings Reporting and Data System; FLAIR = fluid-attenuated inversion recovery; TR = repetition time; TE = echo time; MPRAGE = magnetization-prepared rapid acquisition gradient echo; MPR = multiplanar reconstruction; GRE = gradient echo; TSE = turbo spin echo; DWI = diffusion-weighted imaging; ADC = apparent diffusion coefficient; 3D = three-dimensional; MIP = maximum intensity projection; CE = gadolinium-based contrast material enhanced; VIBE = volumetric interpolated breath-hold examination; HASTE = half-Fourier single-shot turbo spin echo; STIR = short inversion time inversion-recovery. * The dynamic CE study included arterial, portal venous, venous, and delayed phases; The coronal MPR included unenhanced and portal venous phases
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Cancer Imaging

ISSN: 1470-7330

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