The latter, the location of obstruction, is especially important in determining the manner in which pressure loss through an obstructed airway varies with gas flow rate and density.
The diagnostic sensitivity of CT in determining the obstruction level is of 93%, with a specificity of 100% and a predictive value of 83%–94%, which is significantly higher than that provided by abdominal echography and simple radiology.
Malignant biliary obstruction: efficacy of thin-section dynamic CT in determining resectability.
A former acting solicitor general of the United States accused Attorney General William Barr on Sunday of a rush to judgment in determining that he will not consider obstruction of justice charges against President Donald Trump.
Although renal ultrasound is often performed, its clinical utility in determining of the cause of acute kidney injury, particularly the detection of urinary tract obstruction, is not established.
Mr. Blix said the crucial issue for him in determining whether to return to the Security Council to report on an act of resistance or obstruction by Iraq would be where "you can read an intention" into it.
We aimed to quantify the proportion of the general population with OLD, and the intersections of physician-diagnosed asthma, chronic bronchitis (CB), and emphysema in two Italian general population samples, in relationship to airflow obstruction (AO) determined through spirometry.
In 31 patients from the study group, a mild degree of obstruction was determined (forced expiratory volume in 1 second – FEV1 > 80% normal value; the FEV1/FVC ratio below the lower limit of normal, where FVC is the forced vital capacity of the lungs), while, in 39 subjects, the degree was moderate (50% normal value < FEV1 < 80% normal value; the FEV1/FVC ratio below the lower limit of normal).
Third, eligible participants were selected using a fixed FEV1/FVC ratio, and airflow obstruction was determined without consideration of the decrease in pulmonary function that occurs with age.
This obstruction was determined to be an intestinal transverse diaphragm during surgery at our hospital.
