Apparatus for diagnosing pulmonary ventilation function

Details Apparatus for diagnosing pulmonary ventilation function Apparatus for diagnosing pulmonary ventilation function

1989-05-02

1990-07-03

Fields, Carolyn E.

X-ray or gamma ray systems or devices

Specific application

Computerized tomography

378 95, 378 99, 358111, A61B 600

Patent

active

049397575

ABSTRACT:
An apparatus for diagnosing a pulmonary ventilation function includes a flow sensor for detecting a breathing cycle of a patient, a gas regulator for supplying a gaseous contrast medium to the patient, and a CT scanner for performing X-ray scanning and photography of a patient's lungs during one breathing cycle, in response to an output signal from the flow sensor and for outputting a plurality of tomographic images including X-ray absorbance components (CT value information components). The tomographic images generated by the CT scanner are stored in an image file memory. The CT value of the tomographic image read out from the image file memory is compared with a threshold value, and a region required for checking the pulmonary ventilation function is extracted as a result of comparison. The extracted region is displayed on a monitor.

REFERENCES:
patent: 3974386 (1976-08-01), Mistretta et al.
patent: 3993995 (1976-11-01), Kaplan et al.
patent: 4387722 (1983-06-01), Kearns
patent: 4689670 (1987-08-01), Okazaki
Herbert, David L., et al. Mapping of Human Local Pulmonary Ventilation by Xenon Enhanced Computed Tomography, Journal of Computer Assisted Tomography, 6(6):1088-1093 Dec. 1982.
Gur, David, et al., Regional Pulmonary Ventilation Measurements by Xenon Enhanced Dynamic Computed Tomography: An Update, Journal of Computer Assisted Tomography 5(5) 678-683, Oct. 1981.

Affiliated with

Also associated with

Rating

Apparatus for diagnosing pulmonary ventilation function does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for diagnosing pulmonary ventilation function, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for diagnosing pulmonary ventilation function will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1896709