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Table 1 Summary of the imaging sequence applied for sensitivity analysis

From: Comparison of diffusion tensor imaging by cardiovascular magnetic resonance and gadolinium enhanced 3D image intensity approaches to investigation of structural anisotropy in explanted rat hearts

Ref# Imaging Parameters
Start time a Type n-dir b-value (s /mm 2 ) Scan duration b
1 2:00 DTI 6 1000 1:50
2 3 :50 DTI 12 1000 3:56
3 7:46 DTI 6 1000 1:50
4 9:36 DTI 12 500 3:56
5 13:32 DTI 6 1000 1:50
6 15:22 DTI 12 2000 3:56
7 19 :18 DTI 6 1000 1:50
8 21:08 T1W NA NA 18:12
9 39:20 DTI 6 1000 1:50
10 41:10 DTI 12 1500 3:56
11 45:06 DTI 6 1000 1:50
12 46:57 T1W NA NA 18:12
13 65:09 DTI 6 1000 1:50
14 66:59 DTI 12 2500 3:56
15 70:55 DTI 6 1000 1:50
  1. The first scan was carried out at 2 h and subsequent serial scans were carried out without moving the heart in the scanner. A baseline scan taking 1 h 50 m for 6 diffusion directions at b = 1000 s:mm2 was performed at serial time-points throughout the imaging study to explore any changes in diffusion as a result of time elapsed from killing/perfusion fixation. Interspersed between these baseline scans two T1W FLASH scans were performed at 50 × 50 × 50 μm resolution, as well as a series of diffusion scans with different numbers of directions and different b-values. All diffusion scans were at 200 × 200 × 200 μm resolution. Ref #: reference number for this scan; a– time post-fixation (h:min); bduration (h:min); Type: DTI - diffusion tensor magnetic resonance imaging; T1W is T1-weighted FLASH; FLASH: fast low angle shot; n-dir: number of diffusion directions; NA: not applicable.