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Nasal orientation device to control head movement during CT and MR studies
P S Tofts1, A G Kermode, D G MacManus
1Multiple Sclerosis NMR Research Group, Institute of Neurology, London, England.
Journal of Computer Assisted Tomography
|January 1, 1990
Summary
A novel nasal orientation device (NOD) allows cooperative patients to remain still during brain imaging. This simple device improves head stability, enhancing the quality of neurological scans like dynamic Gd-DTPA imaging.
Area of Science:
- Neurological Imaging
- Medical Device Technology
Background:
- Patient movement during brain imaging degrades scan quality.
- Maintaining patient stillness is crucial for accurate diagnostic procedures.
Purpose of the Study:
- To introduce and evaluate a simple device for enhancing patient immobility during brain examinations.
- To assess the efficacy of the nasal orientation device (NOD) in reducing head movement.
Main Methods:
- Development of a U-shaped head support incorporating a nasal orientation device (NOD).
- The NOD, a ring near the nose, provides tactile feedback to guide patients.
- Testing the device's ability to maintain patient stillness within +/- 2 mm during examinations.
Main Results:
- The NOD effectively detects and allows patients to correct rotational head movements.
- Patients using the NOD achieved immobility within approximately +/- 2 mm.
- Improved quality of dynamic Gd-DTPA scanning for blood-brain barrier permeability measurement was observed.
Conclusions:
- The nasal orientation device (NOD) is a valuable tool for improving patient cooperation and head stability in brain imaging.
- The NOD can enhance the quality of various neurological imaging procedures affected by head movement.