+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

CT-determined pulmonary artery diameters in predicting pulmonary hypertension

, : CT-determined pulmonary artery diameters in predicting pulmonary hypertension. Investigative Radiology 19(1): 16-22

This study was to determine if the diameters of pulmonary arteries measured from computed tomographic (CT) scans could be used 1) as indicators of pulmonary artery hypertension and 2) as a reliable base for calculating mean pulmonary artery pressure. The diameters of the main, left, proximal right, distal right, interlobar, and left descending pulmonary arteries were measured from CT scans in 32 patients with cardiopulmonary disease and in 26 age- and sex-matched control subjects. Diameters were measured using a special computer program that could display a CT density profile of the artery and its adjacent tissues. The upper limit of normal diameter for the main pulmonary artery was found to be 28.6 mm (mean + 2 SD). In the patient group, the diameters were correlated with data from cardiac catheterization. In these patients, a diameter of the main pulmonary artery above 28.6 mm readily predicted the presence of pulmonary hypertension. The calculated cross-sectional areas of the main and interlobar pulmonary arteries (normalized for body surface area [BAS]) were found to give the best estimates of mean pulmonary artery pressure (r = 0.89, P less than 0.001 and r = 0.66, P less than 0.001). Multiple regression analysis gave the useful equation: mean pulmonary artery pressure = -10.92 + 0.07646 X area of main pulmonary artery/BSA + 0.08084 X area of the right interlobar pulmonary artery/BSA (r = 0.93, P less than 0.0001). Because CT allows precise, noninvasive measurement of the diameter of pulmonary arteries, it can be of value in detecting pulmonary hypertension and estimating mean pulmonary artery pressure.


PMID: 6706516

Other references

Frazier, E.I.; Porter, T.; Humphrey, M.J., 1949: The utilization of nicotinic acid by pregnant women. The dietary intake of nicotinic acid, the urinary excretion of the acid-hydrolyzable fraction and Nl-methylnicotinamide, and the response to a 50 mg. test dose of nicotinamide were studied on 7 primigravidae during each of the last 5 mos. of pregn...

Lengerken, J.V.; Mueller, V.; Kuehne, R., 1990: Estimation of volatile fatty acids 1. comparison between gas chromatographic and photometric determination of lactic acid in silages disturbances in the analysis of vfa. A comparison between the gaschromatographic and the photometric determination of lactic acid in silages shows that both methods lead to results being adequately correct and precise with regard to evaluating the quality of silages. Recovery rates a...

Pasquale, A.; Moiraghi, P.; Guasco, C., 1968: The significance of blood iron in the differential diagnosis of icterus. Giornale di Malattie Infettive E Parassitarie 20(7): 679-680

Oh, M.-Hyuk; Kim, J.-Hong; Moon, Y.-Hwan; Lee, C.-Hwan, 2004: Defects in a proteolytic step of light harvesting complex II in an Arabidopsis stay-green mutant, ore10, during dark-induced leaf senescence. During dark-induced leaf senescence (DIS), the non-functional stay-green mutant ore10 showed delayed chlorophyll (Chl) degradation and increased stability in its light-harvesting complex If (LHCII). These phenomena were closely related to the form...

Moeller, F.E., 1973: Timing of placement of colonies of honeybees for pollination of cranberries. When honeybee colonies were placed in cranberry (Vaccinium macrocarpon) bog in full bloom, they gathered significantly more cranberry pollen than those placed in the bog 2 weeks before start of bloom. However, in one test, the amounts of pollen ga...

Kawakatsu Hitoshi, 1989: Centroid single force inversion of seismic waves generated by landslides. The centroid moment tensor (CMT) waveform inversion method is modified to analyze long period seismic waves generated by "single force" events such as the gigantic landslides associated with the 1980 eruption of Mount St. Helens. Method...

Jonsson, J.; Alvarez-Castillo, M.del.Carmen.; Sanz, J.C.; Ramiro, R.; Ballester, E.; Fernánez, M.; Echeita, M.A.; Martínez Navarro, F., 2005: Late detection of a shigellosis outbreak in a school in Madrid. Even though shigellosis in Spain is rare, an indigenous outbreak is occasionally detected. We describe an outbreak in a school in Madrid caused by person-to-person transmission of Shigella sonnei. After the detection of Shigella sonnei in a stool...

Chio, C-Ching.; Wei, L.; Chen, T.Guey.; Lin, C-Min.; Shieh, J-Ping.; Yeh, P-Shiow.; Chen, R-Ming., 2015: Neuron-derived orphan receptor 1 transduces survival signals in neuronal cells in response to hypoxia-induced apoptotic insults. OBJECT Hypoxia can induce cell death or trigger adaptive mechanisms to guarantee cell survival. Neuron-derived orphan receptor 1 (NOR-1) works as an early-response protein in response to a variety of environmental stresses. In this study, the auth...

Styles E.D., 1968: Para mutation in maize m seedlings abstract allele pigmentation. Canadian Journal of Genetics & Cytology 10(3): 762

Muijsers, R.B.R.; Folkerts, G.; Van Den Worm, E.; Beukelman, C.J.; Postma, D.S.; Nijkamp, F.P., 1998: Inhibition of peroxynitrite formation by apocynin in a murine macrophage cell-line. British Journal of Pharmacology 123(PROC SUPPL ): 41P, March