1. Non-maturation of an arteriovenous fistula
Conditions
Interventions
All participants in this study will receive both pre- and postoperatively a CE-MRA examination, a duplex examination (only preoperatively) and pressure measurements (radial artery and finger). The dur
Sponsors
1. University of Technology Eindhoven, Department of Biomedical Engineering;
2. University Hospital Maastricht, Department of Surgery.
Eligibility
Inclusion criteria
Inclusion criteria: 1. Pre-dialysis patients with a detoriation of kidney function and an expected start with hemodialysis within three months and patients that are approved to receive a vascular access based on preoperative diagnostics; 2. Dialysis patients for which it becomes necessary to create a new vascular access because the old vascular access has become useless for proper hemodialysis. In addition, the patients should be approved to receive a vascular access in the contralateral arm based on preoperative diagnostics; 3. Only patients with an age of 18 years and older are included.
Exclusion criteria
Exclusion criteria: 1. Standard contra-indications for CE-MRA (ferromagnetic implants that can possibly move, pacemakers or claustrofobia). For patients with such implants, we use Shellock's most updated manual to determine if we can make the scan or not; 2. Possible or proved over-sensitivity for the Gadolinium containing contrast agent; 3. Patients younger than 18 years old.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| 1. A model that is able to predict the patient-specific postoperative flow with a maximum deviation of 10% compared to the measured postoperative flow; 2. A model for postoperative flow prediction that is clinically evaluated for 60 patients; 3. A model that is able to predict hypoperfusion; 4. A model for hypoperfusion that is clinically evaluated for 60 patients. | — |
Secondary
| Measure | Time frame |
|---|---|
| Pilot study: 1. A measurement protocol to determine the vessel compliances by using ultrasound; 2. A measurement protocol to determine the patient's geometry by using CE-MRA. | — |
Contacts
Public ContactWouter Huberts
Outcome results
None listed