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444 results for “Ultrasonography”
Lung ultrasonography features and risk stratification in 80 patients with COVID-19: a prospective observational cohort study
<p><strong>Background</strong></p> <p>Point-of-care lung ultrasound (LUS) is a promising and pragmatic risk stratification tool in COVID-19. This study describes and compares early LUS characteristics across of range of clinical outcomes.</p> <p><strong>Method</strong></p> <p>Prospective observational study of PCR-confirmed COVID-19 patients in the emergency department (ED) of Lausanne University Hospital. A trained physician recorded LUS images using a standardized protocol. Two experts retrospectively reviewed images blinded to patient outcome. We describe and compare early LUS findings (acquired within 24hours of presentation at the ED) between patient groups based on their outcome at 7-days after inclusion: 1) self-resolving outpatients, 2) hospitalised and 3) intubated/death. The LUS score was used to discriminate between groups.</p> <p><strong>Findings</strong></p> <p>Between March 6 and April 3 2020, we included 80 patients (18 outpatients, 41 hospitalized and 21 intubated/dead). 73 patients (91%) had abnormal LUS (72% outpatients, 95% hospitalised and 100% intubated/death; p=0.004). The proportion of involved zones was lower in outpatients compared with other groups (median 30% [IQR 0-40%], 44% [33-70%] and 70% [50-88%], p<0.001). Predominant abnormal patterns were bilateral and multifocal spread thickening of the pleura with pleural line irregularities (77%), confluent B lines (66%) and pathologic B lines (55%). Posterior inferior zones were more often affected. Median LUS score had a good level of discrimination between outpatients and others with area under the ROC of 0.80 (95% CI 0.66-0.95).</p> <p><strong>Interpretation</strong></p> <p>Systematic LUS is a reliable, cheap and easy-to-use triage tool for the early stratification of risk in COVID-19 patients presenting at emergency departments.</p> <p><strong>Funding</strong></p> <p>Leenaards Foundation</p>
Accuracy of ultrasonography and magnetic resonance imaging for preoperative staging of cervical cancer – analysis of patients from the prospective study on total mesometrial resection.
<p>This is supplementary material to the manuscript published in the Diagnostics (MDPI) journal. </p> <p>Diagnostics 2021, 11, 1749</p> <p>https://doi.org/10.3390/diagnostics11101749</p> <p>Videos present examples of ultrasound examinations of patients with cervical cancer.</p>
Accuracy of biomicroscopy, ultrasonography and spectral-domain OCT in detection of complete posterior vitreous detachment
<p><span><strong>Purpose</strong>: To evaluate the accuracy of pre-operative biomicroscopy (BM), ultrasonography (US), and spectral domain optical coherence tomography (SD-OCT) for determining complete posterior vitreous detachment (PVD) confirmed by intraoperative findings of triamcinolone acetonide-assisted pars plana vitrectomy (PPV).</span></p> <p><span><strong>Design</strong>: This was a prospective, consecutive, interventional case series.</span></p> <p><span><strong>Methods</strong>: The study included all patients admitted for surgical treatment of epiretinal membrane (ERM) and macular hole (MH). Presence of complete PVD was determined one day before PPV using BM, US, and SD-OCT. Preoperative findings were compared to PVD status determined during PPV.</span></p> <p><span><strong>Results</strong>: A total of 123 eyes of 123 patients were included in the study. Indications for PPV included ER in 57 (46.34%), full thickness macular hole in 57 (46.34%), and lamelar macular hole in 9 (7.32%) patients. Complete PVD during PPV was observed in 18 (31.58%; 95% CI:18.72–49.91) patients with ERM and 13 (19.7%; 95% CI: 10.49–33.68) patients with MH. Vitreoschisis was present in 30 (24.39%; 95% CI: 15.46–34.82) patients during PPV. The sensitivity of preoperative BM, US, SD-OCT was 48.4% (95% CI: 30.2–66.9), 61.3% (95%CI: 42.2–78.2) and 54.8% (95% CI: 36.0–72.7) respectively. The specificity of preoperative BM, US, SD-OCT was 81.5% (95% CI: 72.1–88.9), 90.2% (95% CI: 82.2–95.4) and 85.9% (95% CI: 77.0–92.3) respectively. With a prevalence of 25.2% of PVD in our sample the positive predictive value of preoperative BM, US, SD-OCT was 46.9% (95% CI: 29.1–65.3),</span> <span>67.9% (95% CI: 47.6–84.1) and 56.7% (37.4–74.5) respectively.</span></p> <p><span><strong>Conclusion</strong>:</span> <span>Preoperative BM, US, and SD-OCT are associated with poor sensitivity and a rather good specificity for detecting complete PVD. There is relatively a high percentage of pa</span>tients with vitreoschisis undergoing vitreoretinal surgery, therefore vitreoretinal surgeons should consider routine usage of triamcinolone in all vitreoretinal cases.</p>
Lung Ultrasonography vs Fiberoptic Bronchoscopy for Aiding Lung Collapse in Patient Using Double Lumen Tube
ClinicalTrials.gov study NCT03314519. IPD Sharing: NO. Countries: 1. Publications: 18.
A Rheumatoid Arthritis Study to Assess Early Response to Abatacept+MTX as Defined by Improvement of Synovitis Measures by Power Doppler Ultrasonography
ClinicalTrials.gov study NCT00767325. IPD Sharing: Not stated. Countries: 8. Publications: 3.
Ultrasonography Versus Palpation for Spinal Anesthesia in Obese Parturients Undergoing Cesarean Delivery
ClinicalTrials.gov study NCT03792191. IPD Sharing: NO. Countries: 1. Publications: 1.
Diagnostic Ultrasonography in Physiotherapy
ClinicalTrials.gov study NCT05916300. IPD Sharing: YES. Countries: 1. Publications: 14.
Gadoxetic Acid-MRI Versus Ultrasonography for the Surveillance of Hepatocellular Carcinoma in High-risk Patients
ClinicalTrials.gov study NCT01446666. IPD Sharing: Not stated. Countries: 1. Publications: 2.
Contrast Enhanced Transrectal Ultrasonography (TRUS) to Assess Prostatic Vascularity After Radiotherapy (XRT)
ClinicalTrials.gov study NCT00635167. IPD Sharing: Not stated. Countries: 1. Publications: 4.
Thoracic Ultrasonography for Pulmonary Edema in Patients With Pre-Eclampsia
ClinicalTrials.gov study NCT02357264. IPD Sharing: NO. Countries: 1. Publications: 8.
Assessment of Human Diaphragm Strength by Magnetic and Electric Stimulation After Ultrasonography Phrenic Nerve Tracking
ClinicalTrials.gov study NCT04199273. IPD Sharing: YES. Countries: 1. Publications: 1.
Accuracy of biomicroscopy, ultrasonography and spectral-domain OCT in detection of complete posterior vitreous detachment
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Data from: Salivary gland ultrasonography as a predictor of clinical activity in Sjögren's syndrome
Purpose: Primary Sjögren's syndrome is a multisystem autoimmune disease characterized by hypofunction of salivary and lacrimal glands and possible multi-organ system manifestations. Over the past 15 years, three sets of diagnostic criteria have been proposed, but none has included salivary gland ultrasonography. However, recent studies support its role in the diagnosis and prognostic evaluation of patients with Sjögren's syndrome. This study aimed to determine the value of salivary gland ultrasonography in the diagnosis and prognosis of Sjögren's syndrome by relating ultrasonography severity scores to clinical and laboratory data. Methods: Seventy patients who fulfilled the 2002 American-European Consensus Group diagnostic criteria for primary Sjögren's syndrome were selected from 84 patients receiving care in specialized outpatient clinics at our institution from November 2013 to May 2016. Their serology, European League Against Rheumatism Sjögren's syndrome disease activity index (ESSDAI), salivary flow rate, immunoglobulin G, and salivary and serum beta-2 microglobulin levels were measured. Salivary gland ultrasonography was performed by an experienced radiologist, using scores of 1-4 to classify salivary gland impairment. Results: Salivary gland ultrasonography scores of 1 or 2 were associated with an ESSDAI < 5. Ultrasonography scores of 3 or 4 were associated with an ESSDAI ≥ 5 (p=0.064), a positive antinuclear antibody test (p=0.006), positive anti-Ro/SSA antibodies (p=0.003), positive anti-La/SSB antibodies (p=0.077), positive rheumatoid factor (p=0.034), and immunoglobulin G levels > 1600 mg/dL (p=0.077). Salivary flow rate was lower in patients with scores 3 or 4 (p=0.001). Conclusion: This study provides further evidence that salivary gland ultrasonography can be used not only for diagnosis but also for prognostic evaluation of primary Sjögren's syndrome. These findings confirm what has been reported in the literature. However, further analyses involving larger matched samples are required to support this finding and include salivary gland ultrasonography as part of the diagnostic criteria for Sjögren's syndrome.
Accuracy of pre-treatment ultrasonography assessment of intra-abdominal spread in epithelial ovarian cancer: a prospective study
<p>Supplementary videos to article: Accuracy of pre-treatment ultrasonography assessment of intra-abdominal spread in epithelial ovarian cancer: a prospective study.</p>
Accuracy of physical examination versus Doppler ultrasonography for determining maturity in postoperative arteriovenous fistula formation
<p>A physical examination was performed by a single vascular surgeon on patients with chronic kidney disease undergoing AVF placement, and a radiologist performed Doppler ultrasonography during the second and sixth postoperative weeks. AVF maturation was determined by dialysis nurses who were asked to perform cannulation. For a fistula to be considered mature, at least six consecutive successful cannulations with a blood flow rate of at least 300 mL/min were required. The accuracy of physical examination and Doppler ultrasonography was compared. The model was developed to predict the success of AVF use.</p>
No Axillary Surgical Treatment in Clinically Lymph Node Negative Patients on Ultrasonography After Neoadjuvant Chemotherapy
ClinicalTrials.gov study NCT06704945. IPD Sharing: YES. Countries: 1. Publications: 2.
Three-dimensional Ultrasonography Versus Hysteroscopy in Evaluation of Uterine Cavity in Infertile Women
ClinicalTrials.gov study NCT03777358. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Facial Mucosal Level Determinants for Single Immediately Placed Implants Evaluated by Novel Ultrasonography
ClinicalTrials.gov study NCT03558282. IPD Sharing: UNDECIDED. Countries: 1. Publications: 44.
Single Complete Compression Ultrasonography to Rule Out Deep Vein Thrombosis During Pregnancy and Postpartum
ClinicalTrials.gov study NCT00740454. IPD Sharing: Not stated. Countries: 2. Publications: 5.
Ultrasonography Confirmation of Feeding Tube Placement
ClinicalTrials.gov study NCT05307900. IPD Sharing: NO. Countries: 1. Publications: 5.
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