Skip to main content

Table 1 Parameters of surveillance noncontrast MRI

From: Noncontrast magnetic resonance imaging versus ultrasonography for hepatocellular carcinoma surveillance (MIRACLE-HCC): study protocol for a prospective randomized trial

Sequence Scannera Matrix Size ST (mm) Gap (mm) TR (msec) TE (msec) FA (°)
Dual-echo T1-WI GRE Magnetom (2D) 256 × 192 6 1.2 150 1.23/2.46 65
Ingenia (3D) 278 × 256 2 0 3.2 1.15/2.30 10
Discovery (3D) 320 × 256 2 0 3.9 1.12/2.35 12
Prisma (3D) 320 × 256 2 0 9 1.34/2.73 9
T1-WI 3D GRE Magnetom 256 × 192 2 0 2.54 0.95 13
Ingenia 256 × 282 2 0 3.1 1.42 10
Discovery 320 × 288 2 0 4.2 1.9 12
Prisma 320 × 256 2 0 2.68 1.08 9
T2-WI with fat saturation Magnetom 256 × 192 4 1 466 96 150
Ingenia 320 × 212 4 1 758 80 90
Discovery 320 × 256 4 1 2800 80 90
Prisma 320 × 182 4 1 620 105 107
T2-WI with long TE Magnetom 320 × 168 4 1 450 148 150
Ingenia 320 × 186 4 1 522 150 90
Discovery 320 × 224 4 1 840 150 90
Prisma 320 × 208 4 1 600 153 98
DWI Magnetom 128 × 96 6 1 5200 67 90
Ingenia 128 × 128 5 1 4848 55 90
Discovery 128 × 80 5 1 4800 51 90
Prisma 140 × 112 5 1 5500 63 90
  1. aFull scanner names are Magnetom Trio Tim (Siemens), Ingenia CX (Philips), and Discovery MR750 (GE), and Prisma Fit (Siemens)
  2. 2D Two-dimensional, 3D Three-dimensional, ST Slice thickness, TR Repetition time, TE Echo time, FA Flip angle, GRE Gradient-recalled echo, DWI Diffusion-weighted imaging