It will be performed in a dedicated interventional radiology suite equipped with digital subtraction angiogram, image overlay/roadmap post-processing capabilities and ability to capture still and video DICOM file data. |
It will be performed through a sheath or cannula placed in the dialysis circuit according to the following specifications: |
1. All fistulograms performed as digital subtraction acquisitions at three frames per second |
2. The entire access circuit from anastomosis to central vein covered in up to three stages |
3. Medial epicondyle of humerus as visible bony landmark on lower arm acquisition; acromioclavicular joint on upper arm and central acquisitions |
4. Measurement ruler in view |
5. Lower arm acquisition to include: |
(a) Anteroposterior projection of anastomosis |
(b) Oblique projection of anastomosis (specify oblique and craniocaudal angulation) |
6. On the acquisition that best demonstrates the target lesion, the following measurements are made: |
(a) Peripheral (close to anastomosis) reference vessel diameter |
(b) Minimum lumen diameter (MLD) |
(c) Central reference vessel diameter |