MedTrace Logo

Dynamic Alterations of Tongue in Sleep Apnoea Hypopnea Syndrome During Sleep

NCT01687855 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 41

Last updated 2012-09-19

No results posted yet for this study

Summary

The aim of this study was to evaluate the dynamic changes of the tongue in patients with obstructive sleep apnoea hypopnea syndrome (OSAHS) during sleep and while awake by using Ultrafast Magnetic Resonance Imaging (UMRI)

Conditions

  • Obstructive Sleep Apnoea

Interventions

DEVICE

Ultrafast Magnetic Resonance Imaging

MRI was performed with a 1.5 superconducting magnet (Gyroscan Intera type, Philips Co. Holland) in a posterior and anterior neck coil. The sequence used to perform the ultrafast MRI was a fast gradient- echo plus sequence. Technical parameters included: echo time, 12 msec; repetition time, 2.3 msec; flap angle, 250; matrix, 192 × 512; section thickness, 7 mm. The imaging time per slice for this sequence was 0.92 sec. A total of 120 consecutive images were obtained as a single section, with a total imaging time of 110.4 seconds. MRI scanning was carried out with the subject first asleep, then whilst awake after 20 minutes in quiet respiration. All images were inputted to the PACS workstation.

Sponsors & Collaborators

  • Wenzhou Medical University

    lead OTHER

Principal Investigators

  • Rong D Hu, Ph.D · Wenzhou Medical University

Eligibility

Min Age
40 Years
Max Age
55 Years
Sex
MALE
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2003-02-28
Primary Completion
2006-05-31
Completion
2006-05-31

Countries

  • China

Study Locations

More Related Trials

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 NCT01687855 on ClinicalTrials.gov