Biomaterial Database

[Radiological indices of pulmonary hypertension in chronic obstructive pulmonary disease (author's transl)]. 1976

J G Parent, and F Schrijen, and R A Viana

This study attempted to correlate mean pulmonary arterial pressure with four radiological indices of pulmonary hypertension in 159 patients with chronic obstructive pulmonary disease. The mean pulmonary arterial pressure at rest (PAPR) and with exercise (PAPE) and four indices measured from the plain chest radiograph were considered. The measurements were: 1) DIP: the distance between the bifurcation of the right and left main pulmonary arteries, 2) DIP/T X 100 where T is a maximal thoracic diameter, 3) R: the diameter of the right descending pulmonary artery, and 4) R/h x 100 where h is T/2. The mean index values +/- SD obtained from three observers were: DIP = 11.4 +/- 1 cm, DIP/T x 100 = 36.1 +/- 3.5 R = 1.9 +/- 4cm, R/h x 100 = 12 +/- 2.7. An analysis of variation demonstrated that the interobserver error was unacceptable for R and R/h x 100 but small for DIP and DIP/T x 100. Increased PAP does not implicate high index values but high values specify abnormal PAP. The results suggest that DIP greater than 13 cm or DIP/T x 100 greater than 42 are diagnostic. A minority presented such values, but in 20 to 30% of these cases this preceded clinical or electrocardiographic manifestations of cor pulmonale.

UI	MeSH Term	Description	Entries
D006976	Hypertension, Pulmonary	Increased VASCULAR RESISTANCE in the PULMONARY CIRCULATION, usually secondary to HEART DISEASES or LUNG DISEASES.	Pulmonary Hypertension
D008168	Lung	Either of the pair of organs occupying the cavity of the thorax that effect the aeration of the blood.	Lungs
D008173	Lung Diseases, Obstructive	Any disorder marked by obstruction of conducting airways of the lung. AIRWAY OBSTRUCTION may be acute, chronic, intermittent, or persistent.	Obstructive Lung Diseases,Obstructive Pulmonary Diseases,Lung Disease, Obstructive,Obstructive Lung Disease,Obstructive Pulmonary Disease,Pulmonary Disease, Obstructive,Pulmonary Diseases, Obstructive
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D011651	Pulmonary Artery	The short wide vessel arising from the conus arteriosus of the right ventricle and conveying unaerated blood to the lungs.	Arteries, Pulmonary,Artery, Pulmonary,Pulmonary Arteries
D011859	Radiography	Examination of any part of the body for diagnostic purposes by means of X-RAYS or GAMMA RAYS, recording the image on a sensitized surface (such as photographic film).	Radiology, Diagnostic X-Ray,Roentgenography,X-Ray, Diagnostic,Diagnostic X-Ray,Diagnostic X-Ray Radiology,X-Ray Radiology, Diagnostic,Diagnostic X Ray,Diagnostic X Ray Radiology,Diagnostic X-Rays,Radiology, Diagnostic X Ray,X Ray Radiology, Diagnostic,X Ray, Diagnostic,X-Rays, Diagnostic
D001794	Blood Pressure	PRESSURE of the BLOOD on the ARTERIES and other BLOOD VESSELS.	Systolic Pressure,Diastolic Pressure,Pulse Pressure,Pressure, Blood,Pressure, Diastolic,Pressure, Pulse,Pressure, Systolic,Pressures, Systolic
D005082	Physical Exertion	Expenditure of energy during PHYSICAL ACTIVITY. Intensity of exertion may be measured by rate of OXYGEN CONSUMPTION; HEAT produced, or HEART RATE. Perceived exertion, a psychological measure of exertion, is included.	Physical Effort,Effort, Physical,Efforts, Physical,Exertion, Physical,Exertions, Physical,Physical Efforts,Physical Exertions
D005188	False Negative Reactions	Negative test results in subjects who possess the attribute for which the test is conducted. The labeling of diseased persons as healthy when screening in the detection of disease. (Last, A Dictionary of Epidemiology, 2d ed)	False Negative Reaction,Reaction, False Negative,Reactions, False Negative
D005189	False Positive Reactions	Positive test results in subjects who do not possess the attribute for which the test is conducted. The labeling of healthy persons as diseased when screening in the detection of disease. (Last, A Dictionary of Epidemiology, 2d ed)	False Positive Reaction,Positive Reaction, False,Positive Reactions, False,Reaction, False Positive,Reactions, False Positive