Cauda Equina Atrophy in Amyotrophic Lateral Sclerosis on Routine Lumbar Magnetic Resonance Imaging
Objective The aim of the study was to evaluate the cross-sectional area of the cauda equina in amyotrophic lateral sclerosis (ALS) on routine lumbar magnetic resonance imaging and investigate the diagnostic accuracy in comparison with age- and sex-matched non-ALS controls. Methods This retrospective study included 15 ALS patients and 15 age- and sex-matched non-ALS controls. Two independent neuroradiologists measured and compared the total cross-sectional area of the cauda equina of ALS patients and the non-ALS controls at the level of the L3 and L4 using axial T2-weighted images. The cutoff value, sensitivity, ...
Source: Journal of Computer Assisted Tomography - November 1, 2022 Category: Radiology Tags: Neuroimaging: Spine Source Type: research

Imaging, Clinical, and Demographic Differences in Patients With Type III Spinal Cerebrospinal Fluid Leak (Cerebrospinal Venous Fistulas) Compared With Patients With Types I and II Spinal Cerebrospinal Fluid Leak
Conclusions When evaluating patients with suspected spinal CSF leak, findings of older age, absence of intracranial extra-axial collections, and small pontomamillary distances may raise suspicion for type III versus type I/II leak. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - November 1, 2022 Category: Radiology Tags: Neuroimaging: Spine Source Type: research

Evaluation of Radiomics Models Based on Computed Tomography for Distinguishing Between Benign and Malignant Thyroid Nodules
Conclusions The radiomics nomogram constructed by combining radiomics characteristics and clinical risk factors was efficacious for distinguishing benign and malignant thyroid nodules. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - November 1, 2022 Category: Radiology Tags: Neuroimaging: Head and Neck Source Type: research

Prognostic Value of 18F-Fluorodeoxyglucose–Positron Emission Tomography/Magnetic Resonance Imaging in Patients With Hypopharyngeal Squamous Cell Carcinoma
Objective The aim of the study is to investigate the value of pretreatment integrated positron emission tomography/magnetic resonance imaging (PET/MRI) in predicting the prognosis of patients with hypopharyngeal squamous cell carcinoma (HSCC). Methods Twenty-one untreated patients with HSCC who underwent PET/MRI before treatment were enrolled. We analyzed the value of PET/MRI parameters in predicting the progression-free survival (PFS) and overall survival (OS) of HSCC patients. Kaplan-Meier method and log rank test were used to perform univariate survival analysis, whereas Cox proportional hazard regression mod...
Source: Journal of Computer Assisted Tomography - November 1, 2022 Category: Radiology Tags: Neuroimaging: Head and Neck Source Type: research

Evaluation of Inferior Intercavernous Sinus in Patients With Pituitary Microadenoma by Contrast-Enhanced SPACE Imaging
Conclusions Contrast-enhanced SPACE may serve as a promising technique in evaluating iICS and individualized preoperative planning before transsphenoidal surgery for pituitary microadenoma. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - November 1, 2022 Category: Radiology Tags: Neuroimaging: Head and Neck Source Type: research

Dual-Energy Computed Tomography–Derived Iodine Density and Spectral Attenuation Analysis for Differentiation of Inverted Papilloma and Sinonasal Squamous Cell Carcinoma/Lymphoma
Conclusions Squamous cell carcinoma/lymphoma had a significantly higher iodine density and spectral attenuation curve slope than inverted papilloma. Using optimal quantitative measurement thresholds provides high diagnostic efficacy. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - November 1, 2022 Category: Radiology Tags: Neuroimaging: Head and Neck Source Type: research

Predictive Value of Different Computed Tomography Perfusion Software Regarding 90-Day Outcome of Acute Ischemic Stroke Patients After Endovascular Treatment: A Comparison With Magnetic Resonance Imaging
This study compared ischemic core and penumbra volumes obtained using different computed tomography perfusion (CTP) software and evaluated the predictive value of CTP and magnetic resonance imaging (MRI) results for 90-day outcomes. Methods In total, 105 acute ischemic stroke patients who underwent endovascular treatment from January 2016 to December 2020 were included. Patients were divided into good and poor outcome groups by a modified Rankin Scale score. Computed tomography perfusion core and penumbra volumes were obtained using OleaSphere and Vitrea software to assess the volumetric relationship with MRI using ...
Source: Journal of Computer Assisted Tomography - November 1, 2022 Category: Radiology Tags: Neuroimaging: Brain Source Type: research

Diagnostic Performance of Dynamic Susceptibility Contrast-Enhanced Perfusion-Weighted Imaging in Differentiating Recurrence From Radiation Injury in Postoperative Glioma: A Meta-analysis
Purpose It is important to differentiate between radiation injury (RI) and tumor recurrence (TR) in patients with glioma after surgery and radiotherapy. Our objective was to evaluate the use of dynamic susceptibility contrast-enhanced perfusion-weighted imaging to distinguish between TR and RI in patients with glioma. Methods Relevant studies published until October 2021 were identified in the PubMed, Embase, and Cochrane Library databases. Stata v12.0 and RevMan 5.3 were used for meta-analysis. Results In total, the meta-analysis incorporated 13 retrospective studies that included 513 patients with 522 l...
Source: Journal of Computer Assisted Tomography - November 1, 2022 Category: Radiology Tags: Neuroimaging: Brain Source Type: research

Computed Tomography Angiography Quantification of Intracranial and Extracranial Vascular Narrowing in Ischemic Stroke: Differences Between Patients With and Without Illicit Drug Use
Objective Previous studies have linked illicit drug consumption and stroke. The purpose of this study is to identify specific imaging findings depicted on computed tomography angiography on patients with illicit drug-associated stroke. Methods This is a retrospective case-control study that included ischemic stroke patients. Subjects who tested positive for cocaine or marijuana were considered as cases, while patients who tested negative were included as controls. Matching of the controls was carried out based on the presence of stroke risk factors. A previously validated scale was used to calculate narrowing sc...
Source: Journal of Computer Assisted Tomography - November 1, 2022 Category: Radiology Tags: Neuroimaging: Brain Source Type: research

The Role of Apparent Diffusion Coefficient Values in Glioblastoma: Differentiating Tumor Progression Versus Treatment-Related Changes
Objective Glioblastoma represents the most common primary brain malignancy with a median survival of 15 months. Follow-up examinations are crucial to establish the presence of tumor recurrence, as well as treatment-associated changes such as ischemic infarction and radiation effects. Even though magnetic resonance imaging is a valuable tool, a histopathological diagnosis is often required because of imaging overlap between tumor recurrence and treatment associated changes. We set out to measure the apparent diffusion coefficient (ADC) values of the lesions in magnetic resonance imaging scans of treated glioblastoma pat...
Source: Journal of Computer Assisted Tomography - November 1, 2022 Category: Radiology Tags: Neuroimaging: Brain Source Type: research

Articular Findings on Chest Computed Tomography: An Algorithmic Approach for Radiologists
Chest computed tomography (CT) is one of the most frequently performed imaging studies. Incidental osseous and articular findings are commonly encountered in chest CTs in daily practice. The spectrum of findings is broad, varying from benign to malignant, and interpretation of these incidental musculoskeletal findings could be challenging for radiologists. In this review, we provide a systematic algorithmic approach for the diagnosis of common articular findings seen on chest CT with recommendations for appropriate follow-up evaluation. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - November 1, 2022 Category: Radiology Tags: Musculoskeletal Imaging Source Type: research

Impact of Parallel Acquisition Technology on the Robustness of Magnetic Resonance Imaging Radiomic Features
Conclusions Integrated parallel acquisition technology had a significant impact on the robustness of radiomic features. Generalized autocalibration partially parallel acquisitions delivered a more robust substrate for radiomic analyses than mSENSE. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - November 1, 2022 Category: Radiology Tags: MR: Technology and Physics Source Type: research

Performance of Ultra-High-Resolution Computed Tomography in Super High–Resolution Mode at the Routine Radiation Dose: Phantom Study
Objective Using a chest phantom, we compared the image quality of ultra-high-resolution computed tomography (U-HRCT) images acquired in super high–resolution (SHR) and normal resolution (NR) mode and at the routine radiation dose. The detector size was 0.25 and 0.5 mm, respectively. Methods A chest phantom was scanned on a U-HRCT scanner. The scan parameters were tube voltage 120 kV and volume CT dose index 13.0 mGy, the routine radiation dose for conventional scans. The rotation time was 0.5 s/rot, the number of matrices was 512 in NR and 1024 in SHR mode. For physical evaluation, the modulation transfer func...
Source: Journal of Computer Assisted Tomography - November 1, 2022 Category: Radiology Tags: CT: Technology and Physics Source Type: research

With the Increasing Health Awareness: Clinical and Computed Tomography Findings in Primary Pulmonary Mucosa-Associated Lymphoid Tissue Lymphoma Lymphoma
Conclusions Nowadays, patients with MALToma are usually asymptomatic or paucisymptomatic. Nodular lesions, including ground-glass nodules, are the most common presentation. Mucosa-associated lymphoid tissue lymphoma is most likely misdiagnosed as lung cancer. Lesions located in the subpleural areas or along the bronchovascular tree and presenting with an air bronchogram or angiogram sign could indicate a MALToma diagnosis. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - November 1, 2022 Category: Radiology Tags: Chest Imaging Source Type: research

Using Routine Chest Computed Tomography to Diagnose Pulmonary Embolism
Conclusions Over one quarter of routine contrast-enhanced chest CT scans met the 200 HU threshold indicative of adequate pulmonary artery enhancement, including nearly half of the 2% of examinations positive for PE. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - November 1, 2022 Category: Radiology Tags: Chest Imaging Source Type: research