![]() ![]() The patient, or body part of interest, must fit within the CT gantry (doughnut-shaped opening) in both the vertical and horizontal dimensions in order for the scan to occur. This will obviate the need for transfer of inpatients between Parnassus and Mission Bay.įor additional questions about MRI scanner diameter and weight limits, please contact:ĬT scanners have both weight and diameter limits. ***MRI with 550 lbs weight limit and 70 cm max diameter will be installed at Parnassus campus early 2022. **There is a protocol for transferring Parnassus inpatients to Mission Bay to obtain imaging when necessary and appropriate. Padding and coils may decrease the maximum patient diameter by up to 5 cm. Maximum diameter listed does not account for padding and coils necessary for safe and effective imaging. ![]() *Diameter is often the limiting factor for MRI. If you are caring for a patient whose size might preclude successful imaging and you would like to discuss this with our UCSF radiology team, please use the contact information provided below. The final evaluation and decision on whether it is safe to proceed with imaging or imaging-guided intervention will be made by the radiology imaging modality managers. These are described in greater detail in the sections dedicated to each imaging modality. Each imaging modality has additional considerations that may preclude successful imaging, even when patients technically meet the manufacturers’ specified limits. different CT scanner models have different specifications). The limits provided below represent the maximum weight/diameter capacitance of a single piece of equipment with the greatest capacity at each UCSF Health imaging site these limits are not applicable across modalities (MRI vs. This website aims to provide information on the size and weight limitations for UCSF imaging modalities. It is essential to operate imaging equipment within limits not only to ensure high quality imaging, but also to avoid patient harm, staff injury, and equipment malfunction. CT, MRI) and even between equipment within each modality. These limitations, including patient weight and diameter, vary between imaging modalities (e.g. Important patient size limitations must be considered when obtaining diagnostic imaging and performing image-guided interventions. ![]()
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