Abstract: PO2102
Correlation Between CT Volumetric and Nuclear Renal Scans in Donors with Renal Asymmetry
Session Information
- Transplantation: Clinical - Allocation, Evaluation, Prognosis, and Viral Onslaughts
November 04, 2021 | Location: On-Demand, Virtual Only
Abstract Time: 10:00 AM - 12:00 PM
Category: Transplantation
- 1901 Transplantation: Basic
Authors
- Gandhi, Nisarg, Houston Methodist Hospital, Houston, Texas, United States
- Ibrahim, Hassan N., Houston Methodist Hospital, Houston, Texas, United States
- Nguyen, Duc T.M., Houston Methodist Hospital, Houston, Texas, United States
- Graviss, Edward A., Houston Methodist Hospital, Houston, Texas, United States
- Nguyen, Hana, Houston Methodist Hospital, Houston, Texas, United States
Background
The Organ Procurement and Transplant Network (OPTN) lists renal asymmetry as a relative contraindication to donation. Clinicians resort to nuclear medicine scans to address discrepancies in kidney size observed by commuted tomography (CT) volumetric. Our study looked at the correlation between CT volumetrics and nuclear medicine scan in addressing renal asymmetry.
Methods
At a large US transplant center, 62 potential donors with discrepancies in kidney size underwent both CT volumetric and nuclear medicine renal scans. The concordance correlation between the CT scan and nuclear medicine scan results was determined separately for the right and left kidney.
Results
The donors were 52.2 years of age (median IQR: 38.5, 61.7), 29.0% male, and 59.7% white. By CT, the right kidney was 45.5% and left kidney was 54.5% of the overall volume. On nuclear medicine scans, right kidney was 46.8% and left kidney was 53.3% (Table 1). The Pearson correlation coefficient was 0.59 for the right kidney and was 0.58 for the left kidney (Figure 1, 2).
Conclusion
Nuclear medicine seems to offer no advantage over CT volumetrics and it adds to the overall time (30-60 minutes) and cost (~$1,587) of the donor evaluation process.
| Right | Left | |
| CT Volumetrics (%), median IQR | 45.5 (43.0, 49.5) | 54.5 (50.5, 57.0) |
| Nuclear Medicine Scan (%), median IQR | 46.8 (43.6, 49.4) | 53.3 (50.6, 56.4) |
Correlation between CT scan and nuclear medicine scan for right kidney
Correlation between CT scan and nuclear medicine scan for left kidney