MRI Prostate without contrast Sequences
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- Axial T1‐weighted pelvis
- Axial T2‐weighted pelvis
- Sagital T2‐weighted pelvis
- Coronal Oblique T2‐weighted prostate
- MR Spectroscopy of selected volumes of the prostate
- Diffusion‐weighted imaging with ADC
Post Contrast "MRI PROSTATE PROTOCOL"
- Dynamic contrast enhancement Coronal Oblique small FOV
Radiology Notes for "MRI PROSTATE PROTOCOL"
- MRI is performed at least 3 to 4 weeks after prostate biopsy because the presence of blood products may obscure or be mistaken for prostate cancer.
- Prior to MRI, an intramuscular spasmolytic drug is injected to diminish bowel peristalsis.
- We are using combination of an endorectal and pelvic phased-array coils. The endorectal coil is inserted and inflated with approximately 60 to 80 mL of liquid per fluorocarbon.
- Proton MRSI( Spectroscopy )reveals specific metabolic information about the prostate.
- Dynamic contrast-enhanced MRI used to find out data reflecting tissue perfusion, micro-vessel permeability, and the extracellular leakage space can be obtained. As with other organs abnormal areas demonstrate different enhancement patterns than that of normal tissue. Typically this data is acquired with a high temporal resolution (3 to 5 seconds). This requires the trade off in the resolution of the imaging to obtain the fastest possible acquisition.
Patient Preparation of the "MRI PROSTATE PROTOCOL"
- NPO 4 hours prior to the examination - this reduces bowel motility.
- Empty bladder, have patient void prior to positioning for exam. This further reduces motion and significant displacement of the organ during data acquisition.
- Empty rectum/sigmoid - bowel cleansing treatment or enema just prior to the MR exam may be considered to eliminate trapped air pockets that will compromise susceptibility sensitive imaging techniques (DWI, spectroscopy).
- Valium (5-10mg po) or Xanax (1-2 mg po) if patient is claustrophobic
Patient positioning: Supine, feet first. The arms are positioned comfortably next to abdomen. Patient must have comfortable pillow for head and a cushion under the knees to relieve back pressure.
T2 AXIAL
T2 CORONAL
T2 SAGITAL
DWC ADC
MRI Prostrate Spectroscopy
MRI Prostrate Dyanmic Contast Enhancement
- MRI is performed at least 3 to 4 weeks after prostate biopsy because the presence of blood products may obscure or be mistaken for prostate cancer.
- Prior to MRI, an intramuscular spasmolytic drug is injected to diminish bowel peristalsis.
- We are using combination of an endorectal and pelvic phased-array coils. The endorectal coil is inserted and inflated with approximately 60 to 80 mL of liquid per fluorocarbon.
- Proton MRSI( Spectroscopy )reveals specific metabolic information about the prostate.
- Dynamic contrast-enhanced MRI used to find out data reflecting tissue perfusion, micro-vessel permeability, and the extracellular leakage space can be obtained. As with other organs abnormal areas demonstrate different enhancement patterns than that of normal tissue. Typically this data is acquired with a high temporal resolution (3 to 5 seconds). This requires the trade off in the resolution of the imaging to obtain the fastest possible acquisition.
Patient Preparation of the "MRI PROSTATE PROTOCOL"
- NPO 4 hours prior to the examination - this reduces bowel motility.
- Empty bladder, have patient void prior to positioning for exam. This further reduces motion and significant displacement of the organ during data acquisition.
- Empty rectum/sigmoid - bowel cleansing treatment or enema just prior to the MR exam may be considered to eliminate trapped air pockets that will compromise susceptibility sensitive imaging techniques (DWI, spectroscopy).
- Valium (5-10mg po) or Xanax (1-2 mg po) if patient is claustrophobic
Patient positioning: Supine, feet first. The arms are positioned comfortably next to abdomen. Patient must have comfortable pillow for head and a cushion under the knees to relieve back pressure.
T2 AXIALT2 CORONALT2 SAGITALMRI Prostrate Spectroscopy
MRI Prostrate Dyanmic Contast Enhancement
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