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Quantitative measurement of lung density with x-ray CT and positron CT, (2). Diseased subjects

Journal Article:

Abstract

Lung density was quantitatively measured on six diseased patients with X-ray CT (XCT) and Positron CT(PCT). The findings are as follows: In the silicosis, extravascular lung density was found to be remarkably increased compared to normals (0.29gcm/sup 3/), but blood volume was in normal range. In the post-irradiated lung cancers, extravascular lung density increased in the irradiated sites compared to the non-irradiated opposite sites, and blood volume varied in each case. In a patient with chronic heart failure, blood volume decreased (0.11mlcm/sup 3/) with increased extravascular lung density (0.23gcm/sup 3/). In the chronic obstructive pulmonary disease, both extravascular lung density and blood volume decreased (0.11gcm/sup 3/ and 0.10mlcm/sup 3/ respectively). Lung density measured with XCT was constantly lower than that with PCT in all cases. But changes in the values of lung density measured, correlated well with each other. In conclusion, the method presented here may clarify the etiology of the diffuse pulmonary diseases, and be used to differentiate and grade the diseases.
Publication Date:
May 01, 1985
Product Type:
Journal Article
Reference Number:
AIX-17-019175; EDB-86-066617
Resource Relation:
Journal Name: Nippon Igaku Hoshasen Gakkai Zasshi; (Japan); Journal Volume: 45:5
Subject:
62 RADIOLOGY AND NUCLEAR MEDICINE; LUNGS; CAT SCANNING; DENSITY; POSITRON COMPUTED TOMOGRAPHY; CARCINOMAS; HEART FAILURE; IMAGES; PATIENTS; PNEUMOCONIOSES; PNEUMONITIS; BODY; COMPUTERIZED TOMOGRAPHY; DIAGNOSTIC TECHNIQUES; DISEASES; EMISSION COMPUTED TOMOGRAPHY; NEOPLASMS; ORGANS; PHYSICAL PROPERTIES; RESPIRATORY SYSTEM; RESPIRATORY SYSTEM DISEASES; SYMPTOMS; TOMOGRAPHY; 550602* - Medicine- External Radiation in Diagnostics- (1980-); 550601 - Medicine- Unsealed Radionuclides in Diagnostics
OSTI ID:
5940631
Research Organizations:
Tohoku Univ., Sendai, Japan. Research Inst. for Tuberculosis and Cancer
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
Journal ID: CODEN: NHGZA
Submitting Site:
INIS
Size:
Pages: 721-727
Announcement Date:

Journal Article:

Citation Formats

Ito, Kengo, Ito, Masatoshi, and Kubota, Kazuo. Quantitative measurement of lung density with x-ray CT and positron CT, (2). Diseased subjects. Japan: N. p., 1985. Web.
Ito, Kengo, Ito, Masatoshi, & Kubota, Kazuo. Quantitative measurement of lung density with x-ray CT and positron CT, (2). Diseased subjects. Japan.
Ito, Kengo, Ito, Masatoshi, and Kubota, Kazuo. 1985. "Quantitative measurement of lung density with x-ray CT and positron CT, (2). Diseased subjects." Japan.
@misc{etde_5940631,
title = {Quantitative measurement of lung density with x-ray CT and positron CT, (2). Diseased subjects}
author = {Ito, Kengo, Ito, Masatoshi, and Kubota, Kazuo}
abstractNote = {Lung density was quantitatively measured on six diseased patients with X-ray CT (XCT) and Positron CT(PCT). The findings are as follows: In the silicosis, extravascular lung density was found to be remarkably increased compared to normals (0.29gcm/sup 3/), but blood volume was in normal range. In the post-irradiated lung cancers, extravascular lung density increased in the irradiated sites compared to the non-irradiated opposite sites, and blood volume varied in each case. In a patient with chronic heart failure, blood volume decreased (0.11mlcm/sup 3/) with increased extravascular lung density (0.23gcm/sup 3/). In the chronic obstructive pulmonary disease, both extravascular lung density and blood volume decreased (0.11gcm/sup 3/ and 0.10mlcm/sup 3/ respectively). Lung density measured with XCT was constantly lower than that with PCT in all cases. But changes in the values of lung density measured, correlated well with each other. In conclusion, the method presented here may clarify the etiology of the diffuse pulmonary diseases, and be used to differentiate and grade the diseases.}
journal = {Nippon Igaku Hoshasen Gakkai Zasshi; (Japan)}
volume = {45:5}
journal type = {AC}
place = {Japan}
year = {1985}
month = {May}
}