Purpose: During the mechanical ventilation weaning process, the spontaneous breathing trial (SBT) is the confirmatory test of patients' capability to breathe unassisted. However, the SBT interobserver agreement rate (its reliability) is unknown, and our objective was to evaluate it.
Materials And Methods: This is a prospective, multicentric and observational study. Patients were included when the SBT criteria were fulfilled. Two physicians and 2 respiratory therapists (RTs) rated each SBT. The SBT interobserver agreement was measured using κ statistic and also the percentage of agreement with its 95% credible interval (CrI) calculated by a Bayesian inference.
Results: Ninety-three distinct physicians and 91 distinct RTs rated 130 SBTs. The κ coefficient was 0.46 for physicians and 0.57 for RT, indicating a moderate interobserver agreement rate. The percentage of agreement was 87.7% between physicians (95% CrI, 81.0%-92.3%) and 86.2% between RT (95% CrI, 79.2%-91.1%). The physicians' and RT' percentage of agreement were not statistically different (P = .71).
Conclusions: The SBT interobserver agreement rate is only moderate for physicians and RT. The percentage of agreement between 2 different SBT observers is 79.2% to 92.3%. Therefore, a relevant percentage of patients will have different extubation decisions depending on the SBT observer.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.jcrc.2012.06.013 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Mammographic Vascular Microcalcifications as a Surrogate Parameter for Coronary Heart Disease: Correlation to Cardiac Computer Tomography and Proposal of a Classification Score.
Diagnostics (Basel)
December 2024
Institute of Diagnostic and Interventional Radiology, GZO Regional Health Center, 8620 Wetzikon, Switzerland.
Objective: This study develops a BI-RADS-like scoring system for vascular microcalcifications in mammographies, correlating breast arterial calcification (BAC) in a mammography with coronary artery calcification (CAC), and specifying differences between microcalcifications caused by BAC and microcalcifications potentially associated with malignant disease.
Materials And Methods: This retrospective single-center cohort study evaluated 124 consecutive female patients (with a median age of 57 years). The presence of CAC was evaluated based on the Agatston score obtained from non-enhanced coronary computed tomography, and the calcifications detected in the mammography were graded on a four-point Likert scale, with the following criteria: (1) no visible or sporadically scattered microcalcifications, (2) suspicious microcalcification not distinguishable from breast arterial calcification, (3) minor breast artery calcifications, and (4) major breast artery calcifications.
Comparing Different Data Partitioning Strategies for Segmenting Areas Affected by COVID-19 in CT Scans.
Diagnostics (Basel)
December 2024
R&D Center in Electronic and Information Technology, Federal University of Amazonas, Manaus 69077-000, Brazil.
Background/objectives: According to the World Health Organization, the gold standard for diagnosing COVID-19 is the Reverse Transcription Polymerase Chain Reaction (RT-PCR) test. However, to confirm the diagnosis in patients who have negative results but still show symptoms, imaging tests, especially computed tomography (CT), are used. In this study, using convolutional neural networks, we compared the following topics using manual and automatic lung segmentation methods: (1) the performance of an automatic segmentation of COVID-19 areas using two strategies for data partitioning, CT scans, and slice strategies; (2) the performance of an automatic segmentation method of COVID-19 when there was interobserver agreement between two groups of radiologists; and (3) the performance of the area affected by COVID-19.
View Article and Find Full Text PDFTwo-dimensional T2*-weighted multi-shot echo-planar imaging to detect cerebral microbleeds in neurocognitive disorders: A time-efficient alternative to susceptibility weighted angiography.
Eur J Radiol
January 2025
Department of Radiology, Rouen University Hospital, Rouen, Normandy, France. Electronic address:
Purpose: To evaluate the effectiveness of ultra-fast two-dimensional (2D) T2*-weighted multi-shot echo-planar imaging (MS-EPI) for the detection of cerebral microbleeds (CMB) in cognitive disorders.
Methods: Sixty-eight patients referred for neuroimaging to investigate cognitive disorders underwent 3 T MR imaging, with both 2D T2*-weighted MS-EPI and susceptibility-weighted angiography (SWAN). Microbleeds were separately assessed on 2D T2*-weighted MS-EPI and SWAN by 2 raters.
Magnetic resonance imaging based anatomy of the conus medullaris: variations of location and morphology.
World Neurosurg
January 2025
Spine unit, Department of Orthopedics and Traumatology, Elhadara University Hospital, Alexandria University, Egypt.
Background: In adults, the conus medullaris( CM) tip usually terminates at the mid aspect of the L1 vertebra. However, variations exist. Beside the location, differences in the CM's shape are believed to be closely related to neurological conditions.
View Article and Find Full Text PDFUsefulness of Dual-Energy CT for Differentiating Hemorrhage From Iodine Extravasation in Meningiomas After Preoperative Embolization.
J Comput Assist Tomogr
November 2024
From the Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, Kumamoto.
Objective: Discriminating between hemorrhage and iodine extravasation can pose challenges in conventional computed tomography (CCT) images following preoperative embolization for meningioma. This study aimed to assess the efficacy of dual-energy computed tomography (DECT) in differentiating hemorrhage from iodine extravasation after preoperative embolization for meningioma.
Methods: Twenty-one consecutive meningioma patients who underwent CCT before and DECT immediately after preoperative embolization were included in this study.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!