1. Pectoralis Major Seq FOV Slice TR TE ETL Misc 4/1 Min 12 3-5 Matrix
Ax T1 Unilateral
24-32
256x256
4/1
500
Min
ZIP 512
*Ax T2FS Unilateral
3-5000
60-70 12
*Obl cor T2FS
256x192
*Obl sag T2FS
Ax T1 Bilateral
Big enough to cover both sides.
320x224
<20
3-5
BW 31kHz
*If poor fat sat switch to STIR

2. Pec Major-Considerations
Usual indication is tear
Pec major tears either at insertion on humerus or medial at myotendinous junction
Coronal and sagittal images need to be aligned relative to the course of the pec muscle
May need to flip phase and frequency in order to limit motion artifact through area of interest
Can scan in prone position to limit respiratory motion

3. Pec Major-Images
Axial images should extend from the top of the humeral head through mid diaphysis of humerus
FOV should extend medially to the sternum
Coronal plane prescribed by line connecting anterior humeral cortex with anterior cortex of sternum
Sagittal plane perpendicular from sternum to lateral aspect humerus