Advanced searches left 3/3

CT - DOAJ

Summarized by Plex Scholar
Last Updated: 23 July 2022

* If you want to update the article please login/register

Lipid-Poor Adrenal Lesion: Differentiation of Benign from Malignant Disease by Using Imaging Features on Routine Contrast-Enhanced CT

Objective: To determine the effect of CT imaging techniques of lipid-poor adrenal lesions in routine contrastenhanced CTs in distinguishing benign from malignant masses. Methods: A retrospective review of 84 lipid-poor adrenal lesions, which were 1-4 cm in diameter, was published as a definitive diagnosis, and were found during routine contrast-enhanced MDCT studies. Patients with underlying extra-adrenal malignancy were discovered in patients with underlying extra-adrenal malignancy. Of those, 58 were found in patients with underlying extra-adrenal malignancy. Even in patients with a high risk of unknown malignancy, the low-density feature was benign with a high specificity of 92%. The combined characteristics of presumed benignity may lead to a benign mass with the highest specificity of 95%. Conclusion: The small, lipid-poor, adrenal masses detected by routine contrast-enhanced CTs are expected to be benign when their internal density on unenhanced images is not greater than 20 HU and/or, especially when a mixture of all morphological characteristics for presumed benignancy appears.

Source link: https://doaj.org/article/9c72b30e2f884a3bb645151d21fe3af3


Correlation Between CT Findings of Invasive Pulmonary Aspergillosis and Severity of Neutropenia

Object: The aim of this study was to determine the correlation between CT findings of invasive pulmonary aspergillosis and neutrophils level. Methods: The patients diagnosed with invasive pulmonary aspergillosis by computed tomography at Siriraj Hospital between May 2006 and May 2010 were included in this retrospective review. Results: Of the 43 patients included, 14 patients were assigned to group I, and 29 patients were randomized to group II. Pulmonary nodules were the most common CT finding of invasive pulmonary aspergillosis, followed by CT halo sign and consolidation. Consolidation and central cavity, respectively, were two CT findings that were significantly higher in patients in group I and group II, which was significantly more prevalent in patients. Conclusion: Consolidation was the CT finding with the most frequent finding in patients with neutrophils 500 cell/mm3, and the central cavity was the most common in patients with neutrophils 500 cell/mm3 with non-specific distribution.

Source link: https://doaj.org/article/536a1ac2b6734af4b3a0651f93dcfbad


Blunt splenic injury: Assessment of follow-up CT utility using quantitative volumetry

In hemodynamically stable patients, non-operative management of non-operative management has evolved into the gold standard of care for blunt splenic injury. Patients were included in this research to determine imaging predictors of splenectomy on follow-up CT performed for BSI between 2017 and 2019. ResultsFactors were identified as independent predictors of decision to perform splenectomy in bivariate logistic regression study include the final hemoperitoneum volume, final subcapsular hematoma volume, and change in subcapsular hematoma volume between scans and new/persistent pseudoaneurysm. Mean combined effective dose for admission and follow-up CT scans was 37. 4 mSv. ConclusionFollow-up CT provides clinically relevant information about how to perform splenectomy in BSI patients managed non-operatively.

Source link: https://doi.org/10.3389/fradi.2022.941863


Case Report: 18F-PSMA PET/CT Scan in Castration Resistant Prostate Cancer With Aggressive Neuroendocrine Differentiation

In up to 20% of advanced prostate cancer patients, the emergence of a neuroendocrine phenotype as a source of resistance to hormonal therapy is apparent. Prostate-specific membrane antigen -based tomography imaging has recently emerged as a promising new benchmark for prostate cancer and PSMA-based radioligand therapy as a treatment option for advanced metastatic castration resistant prostate cancer. Since PSMA expression on neuroendocrine differentiated cells was found to be missing, a PSMA-based theranostic is not currently used in the diagnosis and treatment of NEPC.

Source link: https://doi.org/10.3389/fonc.2022.937713


Detection rate of fluorine-18 prostate-specific membrane antigen-1007 PET/CT for prostate cancer in primary staging and biochemical recurrence with different serum PSA levels: A systematic review and meta-analysis

paraphrasedoutput:MethodsA comprehensive electronic literature search of the PubMed, Embase, and Cochrane Library databases was carried out in accordance with the PRISMA statement. We conducted a systematic review and meta-analysis to determine the detection rate of fluoro-prostate-specific membrane antigen PET/CT in patients with various serum prostate-specific antigen levels in the setting of primary staging of prostate cancer or biochemically recurring PCa. MethodsA systematic electronic literature search of prostate-specific membrane antigen a Results of 18F-PSMA-1007 PET/CT in PCa The final report included 15 studies that described 1,022 patients and 2,034 lesions with 18F-PSMA-1007 PET/CT. In PCa, we calculated the DR of 18F-PSMA-1007 PET/CT. The DR of 18F-PSMA-1007 PET/CT in patients with PCa in primary staging ranged from 90 percent to 100 percent, with a pooled estimate of 94%. BCR patients with PCa in BCR varied from 47 percent to 100%, with a rough estimate of 86%.

Source link: https://doi.org/10.3389/fonc.2022.911146


Ferritin, blood urea nitrogen, and high chest CT score determines ICU admission in COVID-19 positive UAE patients: A single center retrospective study

Since then, new novel coronavirus strains have emerged worldwide, challenging the current healthcare system globally. The majority of the studies examined COVID-19 infected patients in the hospitals and established the positive correlation between clinical signs such as high levels of D-dimer, C-reactive protein, and ferritin to the degree of infection. The retrospective research conducted at University Hospital Sharjah, UAE, provides an integrated review of the biochemical and radiological factors influencing the newly admitted COVID-19 patients' decision on ICU admission. According to the ROC chart, radiological factors including elevated chest CT scores in conjunction with biochemical parameters such as elevated blood urea nitrogen and ferritin concentrations may have predicted ICU admission with 94 percent certainty among COVID-19 patients. These findings, taken collectively, could help the hospitals anticipate the admission of ICU patients amongst COVID-19-infected patients.

Source link: https://doaj.org/article/5bc9f0777acc4567b2a0f425d37f7fc8


A randomised, prospective and head-to-head comparison of [68Ga]Ga-PSMA-11 and [18F]PSMA-1007 for the detection of recurrent prostate cancer in PSMA-ligand PET/CT—Protocol design and rationale

Background An overview of radiopharmaceuticals used for the detection of recurrent prostate cancer has been published, but no comparative imaging trials have been done comparing them. Methods involved In this cross-over trial, 100 people will be randomly chosen either first a standard-of-care PET/CT using [68Ga]Ga-PSMA-11 followed by an additional [18F]PSMA-1007 PET/CT within 2 weeks, or vice versa. Patients 18 years and older with biochemical recurrence of prostate cancer after radical prostatectomy should be included in the Inclusion criteria, which are defined as two separate prostate specific antigen levels > 0. 2 ng/ml. Discussion This is the first randomised prospective comparative imaging study to determine whether the new radiopharmaceutical is non-inferior to the established benchmark of care in terms of patient-level detection rate. Registration of clinical trials Register Registration by the regional ethics authority #2020-20903 and the legislative authority SwissMedic 2020DR2103.

Source link: https://doaj.org/article/4fd203f35b6b4571b8c2ae3562649ba5


PET/CT targeted tissue sampling reveals virus specific dIgA can alter the distribution and localization of HIV after rectal exposure.

In clinical trials, human immunodeficiency virus vaccines haven't been effective. Making dIgA a prime candidate for potential HIV vaccines, Dimeric IgA in the form of mystery IgA. How dIgA antibodies influence virus attachment with mucosal barriers and viral penetration in colorectal tissue was compared to the collaboration of 64Cu-labeled, photoactivatable-GFP HIV, and fluorescently labeled dIgA. Moreover, virions were discovered in the mesenteric lymph nodes two hours after viral exposure, and the presence of dIgA resulted in an increase in virions in mesenteric lymph nodes.

Source link: https://doi.org/10.1371/journal.ppat.1009632


CT scans do not reliably identify appendicoliths in acute appendicitis

Both the CODA and the 2020 WSES Jerusalem guidelines found that nonoperative appendicitis treatment was non-inferior for uncomplicated appendicitis, but appendicitis can cause complications, but appendicitis could cause complications. Appendicoliths on CTu201d are a relative contraindication to NOMA, but the accuracy of CT in identifying appendicoliths is just assumed. Methods and methods: We conducted an EMR survey of 1552 appendectomy patients who had pre-operative CT scans for suspected acute appendicitis from 2001-2019. Appendicoliths in corresponding pathology specimens were compared to appendicoliths on CT. Sensitivity was 55% overall, 66% for B. Specificity, and 82% for B. Radiologist accuracies varied; 55% for A, 66% for B. Appendicitis is often associated with appendicoliths, which leads to appendicitis. An appendicolith's finding in the shared decision-making process regarding patients should not be used to exclude patients from antibiotic therapy but rather used in the shared decision-making discussion about patient care.

Source link: https://doi.org/10.1016/j.sipas.2022.100113


Imaging-Based Deep Graph Neural Networks for Survival Analysis in Early Stage Lung Cancer Using CT: A Multicenter Study

BackgroundLung cancer is the leading cause of cancer-related mortality, and accurate forecast of patient survival can support treatment planning and possibly improve outcomes. paraphrasedoutput:Methods is a software package that predicts lung cancer survival in non-small cell lung cancer patients. In this retrospective analysis, we segmented ten portions of the lung CT images and built individual lung graphs as inputs to train a GCN model to forecast 5-year overall survival. Our proposed GCN model outperformed all ML, Tumor-CNN, and TNM staging models on an external validation dataset, according to an internal validation study. This review demonstrated the benefits of utilizing medical imaging graph structure data, resulting in a robust and cost-effective model for the prediction of survival in early-stage lung cancer.

Source link: https://doi.org/10.3389/fonc.2022.868186

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions