Breath-hold monitor for MR imaging

Details Breath-hold monitor for MR imaging Breath-hold monitor for MR imaging

1993-08-13

1994-11-15

Smith, Ruth S.

Surgery

Truss

Pad

128721, A61B 5055

Patent

active

053638441

ABSTRACT:
In an NMR system a respiration monitor provides a visual feedback to the patient which enables the patient to perform a series of breath-holds with the patient's diaphragm positioned at the same reference point. This enables NMR data to be acquired over a series of breath-holds without introducing blurring or image artifacts. Between breath-holds a navigator pulse sequence is used to gather NMR data from which diaphragm position is measured, and during each breath-hold the pulse sequence is changed to gather NMR image data.

REFERENCES:
patent: 4564017 (1986-01-01), Glover
patent: 4878499 (1989-11-01), Suzuki et al.
patent: 4905699 (1990-03-01), Sano et al.
patent: 5251629 (1993-10-01), Koizumi et al.

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