Diagnostic Radiology

Diagnostic Radiology

MR Renal Mass W/WO Protocol

Scan Notes:

  • Send ADC maps and subtractions

Breath Holds:

  • Scan on expiration.
  • Monitor that patient is breath-holding. Breathe the patient slowly so they have time to follow instructions. Do not start scan until the patient has stopped breathing.
  • Give 2L O2 if it will help with breath-holds UNLESS PATIENT HAS COPD OR ANOTHER REASON NOT TO GIVE O2.

Last updated: 4/12/19
Charge as: Abdomen W/WO
Scanner preference: 1.5T 
Coil: Torso Coil

Plane Weighting Mode Slice Gap FAT SAT FOV Notes
Cor T2 SSFSE BH 5mm 0.5mm N Liver through bottom of kidneys Ensure kidneys are well-centered in coil to ensure good signal at dome.
Axial T1 Dual Echo SPGR BH 3mm 0.5mm N Liver through bottom of kidneys May be separated into overlapping stacks if patient cannot breath-hold. Do not interleave images.
Cor T1 3D mDixon pre BH 3mm 0.5mm N Check before giving contrast. Minimize SENSE if there is mottling in the center of the image. Consider not using SENSE and allowing wrap into the peripheral image, but not into the kidneys
Axial T1 3D mDixon pre BH - - Y Both kidneys Check before giving contrast. Minimize SENSE if there is mottling in the center of the image.

Contrast injection

Power inject 2mL/sec. Trigger when contrast reaches SMA.

Plane Weighting Mode Slice Gap FAT SAT FOV Notes
Axial T1 3D mDixon post BH x3 phases - - Y Both kidneys Check before giving contrast. Minimize SENSE if there is mottling in the center of the image.
COR T1 3D mDixon post BH - - Y Both kidneys EXACT parameters as the COR mDixon precontrast.
Axial T1 3D mDixon post BH - - Y Both kidneys 4-minute post
Axial T2 TSE RT 5mm 1mm SPAIR Liver through bottom of kidneys
Axial T2 DWI 7mm 1mm SPIR Liver through bottom of kidneys Trigger & track. Free-breathing sequence, so please position slices accordingly.
MR Adult Liver Mass WWO BODY Protocol image
MR Abdomen and Pelvis WWO BODY Protocol image