Three Phase Bone Scan
- Preparation
- Patient will consume 16oz of water one hour prior to exam start
- Isotope administration
- Patient will receive 25mci Tc99m MDP intravenously
- Indication
- Fracture
- Prosthetic loosening
- Osteomyelitis
- Reflux Sympathetic Disorder (RSD)
- Camera Parameters Planar imaging
- Flow Parameters
- LEHR collimators
- Matrix 128X128
- Zoom: 1.0
- Camera Preset: Tc99m-NMG
- Detector: Both
- 5 minutes or 600 Kcts per view
- Camera peaked at Tc99m with a 15% window
- 6 seconds X 24 frames
- Whole Body Parameters
- LEHR collimators
- Matrix: 256 x1024
- Zoom: 1.0
- Camera Preset: Tc99m-NMG
- Detector: both
- Auto contour: On
- Scan Speed: 12 cm/min
- Camera peaked at Tc99m with a 15% window
- Static Parameters
- LEHR collimators
- Matrix 128X128
- Zoom: 1.0
- Camera Preset: Tc99m-NMG
- Detector: both
- 5 minutes or 600 Kcts per view
- Camera peaked at Tc99m with a 15% window
- Scanning protocol
- Immediately prior to placing patient on scanning table the patient should be asked to void.
- All metal objects should be removed from patient prior to scan start
- Patient will lay supine on the table with the head facing out.
- Technologist or nurse will place an IV catheter in patient
- For upper extremities the non-affected side should be used for injection purposes
- A Tc99m marker is placed on detector 2 to mark as the right side of the body
- Patient will be injected with radiotracer intravenously while area of interest is within the field of view of the camera for flow images.
- Immediate static images are taken of the area of interest, slightly above area of interest and slightly below the area of interest
- Patient will wait 3 hours before scanning the delayed static and/or whole body images
- For delayed and/or whole body images patient will be scanned laying supine on the table with the head facing out.
- For delayed static images, acquire the same images as the immediate static images with a A Tc99m marker is placed on detector 2 to mark as the right side of the body
- For Wholebody images, Patient will be scanned from the superior aspect of the skull to feet
- Additional imaging views will be acquired at the request of the radiologist supervising the exam.
- Post processing/Display/Achieve
- All acquired images will be adjusted for optimal viewing and appropriate labeling.
Images will be sent to the PAC’s system