Visualization of dialysis fistula by computed tomography using time-resolved 3D volume rendering
Anders Svensson1, Michael A Fischer2, Kerstin Cederlund1
1Division of Medical Imaging and Technology, Department of Clinical Science, Intervention and Technology at Karolinska Institutet, Stockholm, Sweden; Department of Radiology, Karolinska University Hospital in Huddinge, Stockholm, Sweden.
Annals of Vascular Surgery
|December 6, 2014
Summary
Dynamic CT and 3D VR effectively visualize arteriovenous (AV) dialysis fistula function. This imaging technique identified pathology in most patients, offering valuable insights for clinical assessment.
Area of Science:
- Radiology
- Medical Imaging
- Vascular Surgery
Background:
- Arteriovenous (AV) dialysis fistulas are crucial for hemodialysis access.
- Assessing AV fistula function is vital for patient care.
- Current imaging methods may have limitations in dynamic evaluation.
Purpose of the Study:
- To evaluate the functional assessment of AV dialysis fistulas.
- To utilize dynamic computed tomography (CT) and time-resolved 3-dimensional (3D) volume rendering (VR) for fistula imaging.
Main Methods:
- Seven patients undergoing AV dialysis fistula examination were included.
- Dynamic CT scans were acquired after intravenous contrast administration.
- Postprocessing involved creating time-resolved 3D VR images and movies.
Main Results:
- Good image quality was achieved in all studies.
- Pathology was detected in 6 out of 7 patients.
- An aneurysm was an unexpected finding in one patient.
Conclusions:
- Dynamic CT with time-resolved 3D VR is a viable method for visualizing AV dialysis fistula function.
- This technique aids in identifying fistula pathologies.
- The imaging approach offers valuable diagnostic information.
