Results 21 to 30 of about 4,043,862 (395)

A 3-Year Study of Predictive Factors for Positive and Negative Appendicectomies

open access: yesJournal of Investigative Surgery, 2019
Background: Early and accurate identification or exclusion of acute appendicitis is the key to avoid the morbidity of delayed treatment for true appendicitis or unnecessary appendicectomy, respectively. We aim (i) to identify potential predictive factors
Dwayne T. S. Chang   +4 more
doaj   +1 more source

Predictive value of upper lip bite test and ratio of height to thyromental distance compared to other multivariate airway assessment tests for difficult laryngoscopy in apparently normal patients

open access: yesJournal of Anaesthesiology Clinical Pharmacology, 2013
Background: Various anatomical measurements and non-invasive clinical tests, singly or in various combinations can be performed to predict difficult intubation. Recently introduced “Upper lip bite test” (ULBT) and “Ratio of height to Thyromental distance”
P. Shah, K. Dubey, J. Yadav
semanticscholar   +1 more source

Diagnostic Accuracy of B-scan Ultrasonography for Posterior Segment Eye Disorders -A Cross-sectional Study [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2021
Introduction: Ophthalmic Ultrasound (USG) produces real time high resolution images of the eye and orbit. It can categorise, predict location and diagnose posterior segment pathology of the eye very well and is usually used in preoperative evaluation.
Maheswar Chaudhury   +2 more
doaj   +1 more source

Statistics Notes: Diagnostic tests 2: predictive values [PDF]

open access: yesBMJ, 1994
The whole point of a diagnostic test is to use it to make a diagnosis, so we need to know the probability that the test will give the correct diagnosis. The sensitivity and specificity1 do not give us this information. Instead we must approach the data from the direction of the test results, using predictive values.
J M Bland, Douglas G. Altman
openaire   +3 more sources

Testing the necessity of complex numbers in traditional quantum theory with quantum computers [PDF]

open access: yesAm. J. Phys. 93, 110-120 (2025), 2022
A recent experiment testing the necessity of complex numbers in the standard formulation of quantum theory is recreated using IBM quantum computers. To motivate the experiment, we present a basic construction for real-valued quantum theory. The real-valued description is shown to predict correlations identical to those of complex-valued quantum ...
arxiv   +1 more source

Diagnostic tests: how to estimate the positive predictive value.

open access: yesNeuro-Oncology Practice, 2015
When a patient receives a positive test result from a diagnostic test they assume they have the disease. However, the positive predictive value (PPV), ie the probability that they have the disease given a positive test result, is rarely equal to one.
A. Molinaro
semanticscholar   +1 more source

Evaluation of the 50th percentile Moyers analysis in patients with permanent dentition

open access: yesRevista Electrónica Dr. Zoilo E. Marinello Vidaurreta, 2021
Background: the 50th percentile values from the Moyers table, used in Cuba, does not always correspond to the mesiodistal diameter of erupted canines and premolars, for which it is necessary to adjust the probability levels to the studied population ...
Maribel Lorenzo-Gutierrez   +4 more
doaj  

Predictive value of abbreviated olfactory tests in prodromal Parkinson disease

open access: yesnpj Parkinson's Disease, 2023
There is disagreement in the literature whether olfaction may show specific impairments in Parkinson Disease (PD) and if olfactory tests comprised of selected odors could be more specific for diagnosis.
Pavan A. Vaswani   +5 more
doaj   +1 more source

Learning to predict test effectiveness [PDF]

open access: yesInt J Intell Syst. 2022; 37: 4363- 4392, 2022
The high cost of the test can be dramatically reduced, provided that the coverability as an inherent feature of the code under test is predictable. This article offers a machine learning model to predict the extent to which the test could cover a class in terms of a new metric called Coverageability. The prediction model consists of an ensemble of four
arxiv   +1 more source

High-sensitivity cardiac troponin T and copeptin assays to improve diagnostic accuracy of exercise stress test in patients with suspected coronary artery disease [PDF]

open access: yes, 2014
Background: The average diagnostic sensitivity of exercise stress tests (ESTs) is lower than that of other non-invasive cardiac stress tests. The aim of the study was to examine whether high-sensitivity cardiac troponin T (hs-cTnT) or copeptin ...
Dörr, Oliver   +9 more
core   +1 more source

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