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. 2015 Jun;36(6):E41–E51. doi: 10.3174/ajnr.A4341

Table 1:

Summary of recommended acquisition parameters for DSC perfusion imaging

Acquisition Parameter Recommendation
Pulse sequence Generally GRE-EPI rather than SE-EPI
TR 1.0–1.5 seconds (SE-EPI); minimum (vs “as short as possible”) for GRE-EPI; generally 1.0–1.5 seconds
TE 40–45 ms at 1.5T; 25–35 ms at 3T
Flip angle 60°–70°
Temporal coverage 120 Time points
Preload Gd-based contrast agent dose (particularly for studies performed with a high flip angle) One-fourth to single dose (0.025–0.1 mmol/kg Gd), given 5–10 minutes prior to dynamic imaging
Slice thickness 3–5 mm
Matrix 128 × 128 (range, 64 × 64 to 256 × 256)
FOV 20 × 20 cm (range, 20 × 20 to 24 × 24 cm)
IV catheter gauge 18- to 20-ga antecubital IV, right arm preferred
Injection rate 3–5 mL/s
Total acquisition time Approximately 2 minutes

Note:—Gd indicates gadolinium.