Case 1 | Case 2 | |
---|---|---|
Anaesthesia for MRI | Medetomidinea 75 µg/kg IM, propofolb IV isofluranec, O2 | Medetomidinea 30 µg/kg IM, propofolb IV isofluranec, O2 |
MRI equipment and positioning | 0.2 T Vet-MR, Esaote S.p.A, Genoa, Italy) with the cat placed in sternal recumbency in a human knee coil | 0.2 T Vet-MR, Esaote S.p.A, Genoa, Italy) with the cat placed in sternal recumbency in a human knee coil |
MRI sequences and imaging parameters and contrast media 1st examination | Pre-and post-contrast T1W trans (TR 460 ms, TE 18 ms, acquisition matrix 256 × 192, FOV 150 × 150 mm, slice thickness 4.5 mm, interslice gap 0.4 mm) | Pre-and post-contrast T1W trans (TR 750 ms, TE 26 ms, matrix 256 × 192, FOV 140 × 140 mm, slice thickness 3.5 mm, interslice gap 0.3 mm) |
T2W trans and sag (TR 2,600 ms, TE 90 ms, acquisition matrix 192 × 192, FOV 130 × 130 mm, slice thickness 4.5 mm, interslice gap 0.4 mm) | T2W trans and sag (TR 3,000 ms, TE 90 ms, acquisition matrix 256 × 192, FOV 170 × 170 mm, slice thickness 3.5 mm, interslice gap 0.3 mm) | |
Gadopentetd 0.1 mmol/kg IV | Gadopentetd 0.1 mmol/kg IV | |
MRI sequences and imaging parameters and contrast media 2nd examination | Pre-contrast T1W trans (TR 750 ms, TE 26 ms, acquisition matrix 256 × 192, FOV 170 × 170 mm, slice thickness 4.0 mm, interslice gap 0.4 mm) | Pre- and post-contrast T1W trans (TR 800 ms, TE 26 ms, acquisition matrix 256 × 192, FOV 170 × 170 mm, slice thickness 4.0 mm, interslice gap 0.4 mm) |
Post-contrast T1W trans (TR 750 ms, TE 26 ms, acquisition matrix 256 × 192, FOV 170 × 170 mm, slice thickness 4.0 mm, interslice gap 0.4 mm) dors (TR 600 ms, TE 26 ms, acquisition matrix 256 × 192, FOV 180 × 180 mm, slice thickness 4.0 mm, interslice gap 0.4 mm) | ||
T2W trans and sag (TR 3,000 ms, TE 80 ms, acquisition matrix 256 × 192, FOV 180 × 180 mm, slice thickness 4.0 mm, interslice gap 0.4 mm) | T2W trans (TR 3,000 ms, TE 80 ms, acquisition matrix 192 × 192, FOV 180 × 180 mm, slice thickness 4.0 mm, interslice gap 0.4 mm) and sag (TR 3,000 ms, TE 90 ms, acquisition matrix 192 × 192, FOV 170 × 170 mm, slice thickness 4.0 mm, interslice gap 0.4 mm) | |
FLAIR trans and dors (TR 5,100 ms, TE 80 ms, acquisition matrix 288 × 192, FOV 220 × 220 mm, slice thickness 4.0 mm, interslice gap 0.4 mm) | FLAIR dors (TR 2,000 ms, TE 80 ms, acquisition matrix 256 × 192, FOV 200 × 200 mm, slice thickness 4.0 mm, interslice gap 0.4 mm) | |
Gadopentetd 0.1 mmol/kg IV | Gadopentetd 0.1 mmol/kg IV |