Semiautomated Renal Cortex Volumetry in Spectral Computed Tomography: Effect of Monoenergetic Reconstructions on Measurement Precision and Interobserver Variability

Objective The aim of this study was to determine the influence of virtual monoenergetic images (vMEIs) on renal cortex volumetry (RCV) and estimation of split-renal function. Methods Twenty-five patients (mean ± SD, 64.7 ± 9.9 years) underwent a contrast-enhanced dual-layer spectral detector computed tomography. Images were reconstructed with a reference standard (iterative model reconstruction, IMRRef), a newly spectral detector computed tomography algorithm (SPcon) and vMEI at 40, 60, 80, 100, and 120 keV. Two blinded independent readers performed RCV on all data sets with a semiautomated tool. Results Total kidney volume was up to 15% higher in vMEI at 40/60 keV compared with IMRRef (P
Source: Journal of Computer Assisted Tomography - Category: Radiology Tags: Abdominal and Whole Body Imaging Source Type: research

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ConclusionsThe absorbed dose within all radiosensitive tissues varied considerably in relation to examination type, x-ray unit, clinical settings, and patient age. The mean doses were smaller when using 2 (bilateral) 4 × 4 cm volumes than with use of one 14 × 5 cm volume.
Source: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology - Category: ENT & OMF Source Type: research
ConclusionWith the guidance of navigation integrated with PET, CNB is a feasible and accurate diagnostic modality, which is also an alternative to open biopsy in patients with suspected primary or recurrent malignancies in deep regions of the head and neck on PET/CT.
Source: Journal of Cranio Maxillofacial Surgery - Category: ENT & OMF Source Type: research
Authors: Regnier P, De Luca V, Brunelle S, Sfumato P, Walz J, Rybikowski S, Maubon T, Branger N, Fakhfakh S, Durand M, Gravis G, Pignot G Abstract BACKGROUND: Sarcopenia is suspected to influence the complication rates in patients undergoing radical cystectomy (RC). The aim of our study was to assess variations in sarcopenia in patients scheduled for neoadjuvant cisplatin-based chemotherapy (NAC) and RC for muscle invasive bladder cancer (MIBC) and to explore the impact of sarcopenia on complications linked to NAC or surgery. METHODS: Between 2012 and 2017, 82 consecutive patients who underwent NAC and RC for c...
Source: Minerva Urologica e Nefrologica - Category: Urology & Nephrology Tags: Minerva Urol Nefrol Source Type: research
ConclusionACP pneumatization can be recognized in all ages including pediatric age. CT scan is recommended before anterior clinoidectomy to assess the presence and extent of pneumatization to avoid CSF leak complications. When recognized, reconstruction must be attempted to obliterate the connection between the intracranial space and nasal sinuses. If CSF leak recognized post-operatively, repair is feasible through open or endoscopic transnasal approach.
Source: Interdisciplinary Neurosurgery - Category: Neurosurgery Source Type: research
We present a case report of an adult woman with AKL-positive ALCL, diagnosed by endobronchial ultrasound-guided transbronchial needle aspirate (EBUS-TBNA).A 59-year-old women with no history of breast implants, was admitted for a four-month low back pain. Initially, the patient was treated for a spondyloarthropathy, but due to persistence of the symptoms, a lumbosacral MRI was performed, showing changes in morphology and signal intensity in the vertebral body of L3, along with edema and a paravertebral collection that affected the left psoas muscle, suggesting granulomatous spondylodiscitis. Chest CT-scan showed mild left ...
Source: Respiratory Medicine Case Reports - Category: Respiratory Medicine Source Type: research
CONCLUSION About one third of the injuries previously classified as grade III will be upgraded to grade IV using the 2018 AAST, which adds to the heterogeneity of grade IV injuries. Although the 2018 AAST grading provides more anatomic details on injury patterns and includes important radiologic findings, it did not outperform the 1989 AAST grading in predicting bleeding interventions. LEVEL OF EVIDENCE Prognostic and Epidemiological Study, level III.
Source: The Journal of Trauma: Injury, Infection, and Critical Care - Category: Orthopaedics Tags: AAST 2019 PODIUM PAPER Source Type: research
CONCLUSION Appendiceal tumors are possible findings in appendix specimens, and most patients had uncomplicated acute appendicitis. In light of findings we conclude that CT cannot be used to exclude neoplastic etiology underlying acute appendicitis. LEVEL OF EVIDENCE Diagnostic, level IV.
Source: The Journal of Trauma: Injury, Infection, and Critical Care - Category: Orthopaedics Tags: ORIGINAL ARTICLES Source Type: research
INTRODUCTION Admission computed tomography (CT) is a widely used diagnostic tool for patients with pelvic fractures. In this pilot study, we hypothesized that pelvic hematoma volumes derived using a rapid automated deep learning-based quantitative visualization and measurement algorithm predict interventions and outcomes including (a) need for angioembolization (AE), pelvic packing (PP), or massive transfusion (MT), and (b) in-hospital mortality. METHODS We performed a single-institution retrospective analysis of 253 patients with bleeding pelvic fractures who underwent admission abdominopelvic trauma CT between 2008 ...
Source: The Journal of Trauma: Injury, Infection, and Critical Care - Category: Orthopaedics Tags: ORIGINAL ARTICLES Source Type: research
CONCLUSION For patients with TBI resulting in intracranial hemorrhages, administration of VTE chemoprophylaxis is warranted for those patients with stable repeat computed tomography scans. Early chemoprophylaxis, at 24 to 72 hours is associated with reduced VTE incidence without a corresponding increase or exacerbation of intracranial hemorrhage in patients with TBI who have a stable repeat head computed tomography scan. More studies are needed to establish guidelines for the safety and efficacy of VTE prophylaxis protocols in adult patients with TBI. LEVEL OF EVIDENCE Systematic review, level III.
Source: The Journal of Trauma: Injury, Infection, and Critical Care - Category: Orthopaedics Tags: SYSTEMATIC REVIEWS Source Type: research
Conclusion: Acute colonic volvulus in our region is not as uncommon as in other parts of the world. This disorder must be suspected, when a patient presents with abdominal pain, abdominal distension, a bean sign on plain X rays or/and a whirl sign in a CT scan. PMID: 32079051 [PubMed - as supplied by publisher]
Source: Annals of Coloproctology - Category: Gastroenterology Tags: Ann Coloproctol Source Type: research
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