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3D Time-of-Flight Magnetic Resonance Angiography in Hemodialysis Patients With Arteriovenous Fistula

NCT04312711 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 68

Last updated 2022-01-11

No results posted yet for this study

Summary

This study is aimed to assess the value of three-dimensional time-of-flight magnetic resonance angiography (3D-TOF-MRA) in hemodialysis patients with occlusive disease in arteriovenous fistula (AVF). All participants will receive 3D-TOF-MRA and ultrasound to detect the stenosis degree of AVF.

Conditions

  • Magnetic Resonance Angiography
  • Hemodialysis
  • Arteriovenous Fistula Stenosis

Interventions

DIAGNOSTIC_TEST

3D-TOF-MRA

The Principle of 3D-TOF-MRA is based on the "flow effect" of MR. In the GE sequence of MRA imaging, the effect of RF pulses makes the protons in the stationary tissue in the active layer in a saturated state, and the longitudinal magnetization disappears. When the inflow blood appears, its protons are in an unsaturated state and have a high degree of longitudinal magnetization. In this way, a clear difference is formed between saturated tissue and unsaturated flowing blood to display blood vessels. 3D-TOF-MRA is a non-invasive and safe method for diagnosing vascular diseases.

Sponsors & Collaborators

  • Shanghai Jiao Tong University Affiliated Sixth People's Hospital

    lead OTHER

Principal Investigators

  • Yue-Qi Zhu, Dr · Shanghai 6th People's Hospital

Study Design

Allocation
NA
Purpose
DIAGNOSTIC
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2018-12-01
Primary Completion
2020-10-01
Completion
2021-03-31

Countries

  • China

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04312711 on ClinicalTrials.gov