Odontogenic Tumors: Imaging-Based Review of the Fourth Edition of World Health Organization Classification
The fourth edition of World Health Organization (2017) classified odontogenic tumors according to the tissue of origin. Epithelial odontogenic tumors include ameloblastomas, calcifying epithelial odontogenic tumors, adenomatoid odontogenic tumors, and squamous odontogenic tumors. Mixed epithelial and mesenchymal odontogenic tumors include odontomas, ameloblastic fibromas, dentigenic ghost cell odontogenic tumors, and primordial odontogenic tumors. Mesenchymal odontogenic tumors include cementoblastomas, cement-ossifying fibromas, odontogenic fibromas, and odontogenic myxomas. Malignant odontogenic tumors are either carcino...
Source: Journal of Computer Assisted Tomography - September 1, 2019 Category: Radiology Tags: Neuroradiology Source Type: research

Detectability of Malignant Lesions by Whole-Body Magnetic Resonance Imaging Using Whole-Body Integrated Positron Emission Tomography/Magnetic Resonance Imaging
Conclusion The sensitivity of whole-body MRI was lower when lesion based, but almost equivalent when patient based compared with PET/MRI. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - July 1, 2019 Category: Radiology Tags: Whole Body Imaging Source Type: research

Myeloproliferative Neoplasms: A Primer for Radiologists
The myeloproliferative neoplasms (MPNs) are a heterogeneous group of diseases including polycythemia vera, essential thrombocythemia, and primary myelofibrosis. Knowledge of the radiological and clinical features of MPNs and their associated complications is critical for interpreting radiologists. The purpose of this article is to provide a primer to radiologists summarizing the modern understanding of MPNs from an imaging-based perspective, including common disease-related findings and complications related to hematopoietic cell transplant. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - July 1, 2019 Category: Radiology Tags: Whole Body Imaging Source Type: research

Combining Prostate Imaging Reporting and Data System, Histogram Analysis, and Prostate-Specific Antigen Density to Determine the Risk of Prostate Cancer in Patients With Prostate-Specific Antigen of 4 to 20 ng/mL
Objective To develop regression models using Prostate Imaging Reporting and Data System (PI-RADS), histogram analysis, and prostate-specific antigen density (PSAD) to predict prostate cancer (PCa) and clinically significant PCa (CSPCa) in patients with prostate-specific antigen of 4 to 20 ng/mL. Methods In total, 195 PCa and 386 noncancer patients with prostate-specific antigen of 4 to 20 ng/mL were divided into development and validation cohorts. Magnetic resonance imaging results of them were assessed by PI-RADS scores and histogram analysis–corrected PI-RADS (PI-RADSh) scores. Diagnostic efficiencies for PCa ...
Source: Journal of Computer Assisted Tomography - July 1, 2019 Category: Radiology Tags: Abdominal Imaging Source Type: research

Diffuse Peripheral Zone T2 Hypointensity: When to Worry About Prostate Cancer
Conclusion Obscured surgical capsule is a strong independent predictor for diffuse PCa in T2 hypointense PZs. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - July 1, 2019 Category: Radiology Tags: Abdominal Imaging Source Type: research

Application of Blood Oxygenation Level–Dependent Magnetic Resonance Imaging and Intravoxel Incoherent Motion to Assess Bilateral Renal Pathophysiological Processes Induced by Iodixanol Renal Artery First-Pass in Rabbit Model
Background Noninvasive blood oxygen level–dependent imaging and intravoxel incoherent motion sequences were used to assess bilateral renal oxygenation, hemodynamics, and proton diffusion in iodixanol renal artery first-pass in rabbit model. Methods Forty-two rabbits were divided into 2 groups. Saline and iodixanol (1 g iodine/kg, left renal artery) were administered. Magnetic resonance imaging scans were acquired longitudinally at 24 hours prior to and 1, 24, 48, and 72 hours after administration to assess apparent diffusion coefficient, pure molecular diffusion (D), perfusion-related diffusion (D*), volume frac...
Source: Journal of Computer Assisted Tomography - July 1, 2019 Category: Radiology Tags: Abdominal Imaging Source Type: research

Nonenhancing Component of Clear Cell Renal Cell Carcinoma on Computed Tomography Correlates With Tumor Necrosis and Stage and Serves as a Size-Independent Prognostic Biomarker
This study aimed to quantify nonenhancing tumor (NT) component in clear cell renal cell carcinoma (ccRCC) and assess its association with histologically defined tumor necrosis, stage, and survival outcomes. Methods Among 183 patients with ccRCC, multi-institutional changes in computed tomography attenuation of tumor voxels were used to quantify percent of NT. Associations of NT with histologic tumor necrosis and tumor stage/grade were tested using Wilcoxon signed rank test and with survival outcomes using Kaplan-Meier curves/Cox regression analysis. Results Nonenhancing tumor was higher in ccRCC with tumor necrosis (...
Source: Journal of Computer Assisted Tomography - July 1, 2019 Category: Radiology Tags: Abdominal Imaging Source Type: research

DIfferential Subsampling With Cartesian Ordering With Respiratory Triggering Versus Conventional Liver Acquisition With Volume Acquisition: A Multiple Reader Preference Study
Objective The aim of this study was to compare respiratory-triggered DIfferential Subsampling with Cartesian Ordering (rtDISCO) and breath-held Liver Acquisition with Volume Acquisition (LAVA) image quality. Methods In this institutional review board–approved, Health Insurance Portability and Accountability Act–compliant prospective study, 25 subjects underwent T1 imaging with rtDISCO and LAVA before and after intravenous contrast. Three readers scored individual series and side-by-side comparisons for motion and noise. Eight clinical tasks were qualitatively assessed. Results As individual series, read...
Source: Journal of Computer Assisted Tomography - July 1, 2019 Category: Radiology Tags: Abdominal Imaging Source Type: research

Diagnostic Efficacy of T2 Dark Spot, T2 Dark Rim Signs, and T2 Shading on Magnetic Resonance Imaging in Differentiating Endometriomas From Hemorrhagic Cysts
Conclusions T2 dark spot and T2 dark rim signs could be useful for distinguishing endometriomas from hemorrhagic cysts. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - July 1, 2019 Category: Radiology Tags: Abdominal Imaging Source Type: research

Individualized Delay for Abdominal Computed Tomography Angiography Bolus-Tracking Based on Sequential Monitoring: Increased Aortic Contrast Permits Decreased Injection Rate and Lower Iodine Dose
Objective The aim of this study was to determine if computed tomography (CT) angiography using an individualized transition delay (CTA-ID) would facilitate reductions in injection rate and iodine dose. Methods The CTA-ID was performed in 20 patients with routine injection rate and iodine dose; 20 patients with injection rate lowered by 1 mL/s; and 40 patients with injection rate lowered by 1 mL/s with 29% less iodine. Routine CTAs in the same or size-matched patients served as controls. Diagnostic image quality and intra-arterial CT numbers were assessed. Results The median transition delay between aortic threshold...
Source: Journal of Computer Assisted Tomography - July 1, 2019 Category: Radiology Tags: Abdominal Imaging Source Type: research

Clinical and Payer-Based Analysis of Value of Dual-Energy Computed Tomography for Workup of Incidental Abdominal Findings
Conclusions Dual-energy computed tomography can provide an imaging-based diagnosis of incidental abdominal findings, otherwise incompletely characterized on routine abdominal computed tomography, in approximately 21% of patients. In select patients, the monetary savings from abolishing additional imaging may reduce payer costs associated with use of DECT. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - July 1, 2019 Category: Radiology Tags: Abdominal Imaging Source Type: research

Correlation Between Dual-Energy Computed Tomography Single Scan and Computed Tomography Perfusion for Pancreatic Cancer Patients: Initial Experience
The objective of this study was to evaluate the role and limit of iodine maps by dual-energy computed tomography (CT) single scan for pancreatic cancer. Methods Thirty patients with suspected solitary pancreatic cancer were enrolled in this study and underwent CT perfusion and iodine maps. The parameters of pancreatic cancer and normal pancreatic tissue were calculated. Pearson correlation and paired t test were used for evaluating 2 techniques. Results Iodine concentration had a moderate positive correlation with blood flow or blood volume (P (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - July 1, 2019 Category: Radiology Tags: Abdominal Imaging Source Type: research

Postoperative Imaging After Lobectomy: Predicting the Displacement and Change in Orientation of Nonresected Lung Nodules
Conclusions Remaining ipsilateral nodules and their associated segmental airways are displaced in a predictable fashion after lobectomy. This may help in the assessment of follow-up imaging. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - July 1, 2019 Category: Radiology Tags: Cardiothoracic Imaging Source Type: research

Lesser Known Facts of Small Cell Lung Cancer
Until recently, the treatment of small cell lung cancer (SCLC), a malignancy classically described as having a robust response to first-line therapy with near-universal recurrence, has remained relatively unchanged. Advancements in the management of SCLC have lagged behind those seen for non–small cell lung cancers. As the era of precision medicine and targeted immunotherapy evolves, radiologists must be familiar with the modern treatment paradigms of SCLC and associated imaging patterns, including classic and nonclassic appearances of treatment complications. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - July 1, 2019 Category: Radiology Tags: Cardiothoracic Imaging Source Type: research

Coronary Artery Anomalies and Associated Radiologic Findings
Coronary anomalies occur in about 1% of the general population and in severe cases can lead to sudden cardiac death. Coronary computed tomography angiography and magnetic resonance imaging have been deemed appropriate for the evaluation of coronary anomalies by accurately allowing the noninvasive depiction of coronary artery anomalies of origin, course, and termination. The aim of this article is to describe and illustrate a comprehensive array for the classification of coronary artery anomalies. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - July 1, 2019 Category: Radiology Tags: Cardiothoracic Imaging Source Type: research

Positive Predictive Values of Lumbar Spine Magnetic Resonance Imaging Findings for Provocative Discography
Conclusions Disc herniations and HIZ discs have high predictive value in identifying a pain generator. An extruded disc herniation has the highest PPV for discogenic pain. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - July 1, 2019 Category: Radiology Tags: Neuroradiology Source Type: research

Usefulness of Diffusion-Weighted Magnetic Resonance Imaging Using Apparent Diffusion Coefficient Values for Diagnosis of Infantile Hemangioma
The objective of this study was to determine whether apparent diffusion coefficient (ADC) values obtained from diffusion-weighted imaging allow differentiation between infantile hemangiomas (IHs) and malignant soft tissue tumors. Methods A retrospective review was performed on magnetic resonance images of pediatric patients with IHs and malignant soft tissue tumors from January 2014 to December 2016, which comprised 7 patients with 8 IHs and 6 patients with 6 malignant soft tissue tumors. We calculated and compared the ADC values of each lesion. Receiver operating characteristic curve analysis was performed to determine...
Source: Journal of Computer Assisted Tomography - July 1, 2019 Category: Radiology Tags: Neuroradiology Source Type: research

The Value of 1H-MRS and MRI in Combined Methylmalonic Aciduria and Homocystinuria
Conclusions Methylmalonic aciduria and homocystinuria patients with metabolite changes in the basal ganglia demonstrate compromised neuronal integrity, and anerobic metabolism occurs in acute encephalopathic episodes. 1H-MRS is a useful tool for evaluating brain damage. Hydrocephalus and diffuse supratentorial white matter edema are the main MRI features. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - July 1, 2019 Category: Radiology Tags: Neuroradiology Source Type: research

Artifact Reduction in the Diagnosis of Vasospasm in Computed Tomographic Perfusion: Potential of Iterative Metal Artifact Reduction
This study aimed to analyze the possibility of artifact reduction using a new iterative metal artifact reduction algorithm (iMAR) in the diagnosis of perfusion deficits due to vasospasms and to evaluate its clinical relevance. Methods Sixty-one volume perfusion computed tomographies of 24 patients after coiling or aneurysm clipping were reconstructed using standard-filtered back-projection and iMAR retrospectively. The degree of artifacts was evaluated as well as the size of the nonevaluable area. Diagnostic performance was evaluated compared with digital subtraction angiography. Results Artifacts were present in 39 ...
Source: Journal of Computer Assisted Tomography - July 1, 2019 Category: Radiology Tags: Neuroradiology Source Type: research

Abnormal Neural Activity in Children With Diffuse Intrinsic Pontine Glioma Had Manifested Deficit in Behavioral Inhibition: A Resting-State Functional MRI Study
Conclusions These findings of focal spontaneous hyperfunction and hypofunction, which correlate with deficit in behavioral inhibition processing, and the abnormal brain regions are considered to be inefficient (in regions of the brain that may relate to compensatory brain and behavioral functioning, and it may be that the brain region needs to exert extra energy to perform a task to the same degree as the control group) or inability (inability in a certain region, or underpowered), pointing to a pathophysiologic process in executive dysfunction. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - July 1, 2019 Category: Radiology Tags: Neuroradiology Source Type: research

Blood Oxygen Level–Dependent Response Changes in the Ipsilateral Primary Somatosensory Cortex and Thalamus of Patients With Moyamoya Disease During Median Nerve Electrical Stimulation
Conclusions During sensory stimulation treatment, BOLD response changes occurred in the ipsilateral SI and thalamus of MMD patients. These changes enabled the contralateral hemisphere of the brain to better deal with sensory stimuli. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - July 1, 2019 Category: Radiology Tags: Neuroradiology Source Type: research

Development of a Standardized Grading Scale for Atherosclerotic Disease of the Head and Neck
Conclusions A simple, visual grading scale for atherosclerosis in head/neck CT angiography was used to standardize reporting and better characterize a patient's risk of stroke. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - July 1, 2019 Category: Radiology Tags: Neuroradiology Source Type: research

Clinical Applications of Arterial Spin Labeling in Brain Tumors
The aim of this review was to review the basic background, technique, and clinical applications of arterial spin labeling in brain tumors. Arterial spin labeling is used for differentiation of brain tumors from nonneoplastic lesions such as infarction and infection. It has a role in the grading of gliomas and in the differentiation of gliomas from lymphomas and metastasis. It is used for detection of the best biopsy site and prediction of treatment response. Arterial spin labeling is used for the assessment of extra-axial tumors and pediatric tumors. Last, it has a role in the differentiation of tumor recurrence from postr...
Source: Journal of Computer Assisted Tomography - July 1, 2019 Category: Radiology Tags: Neuroradiology Source Type: research

Ultrasound Visualization of Torsional Anatomic Changes From External Rotation of the Anterior Shoulder
Conclusion Movement into external rotation changes the sonographic appearance of the anatomic relationships of the anterior shoulder. Knowledge of these torsional changes can have both diagnostic and therapeutic implications. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - May 1, 2019 Category: Radiology Tags: Graphic Anatomy Source Type: research

Computed Tomography–Colonography With Intravenous Contrast Medium and Urographic Phase for the Evaluation of Pelvic Deep Infiltrating Endometriosis of Intestinal and Urinary Tract
Conclusions Computed tomography–colonography with intravenous contrast medium and urographic phase is a useful technique for the preoperative planning of selected women with DIE, in particular, for the detection of sigmoid colon and bladder lesions especially when performed with a dose reduction protocol. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - May 1, 2019 Category: Radiology Tags: Abdominal Imaging Source Type: research

Apparent Diffusion Coefficient of the Placenta and Fetal Organs in Intrauterine Growth Restriction
Conclusion Combined ADC of the placenta and fetal organs can detect IUGR, and combined ADC of the placenta and fetal brain can define fetuses needing ICU. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - May 1, 2019 Category: Radiology Tags: Abdominal Imaging Source Type: research

Automated Volumetric Assessment of Hepatocellular Carcinoma Response to Sorafenib: A Pilot Study
Conclusions Automated volumetric analysis was determined to be feasible for monitoring HCC response to treatment. The information extracted using automated volumetrics is likely to reproduce labor-intensive manual data and provide a good predictor for TTP. Further work will extend these studies to additional treatment modalities and larger patient populations. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - May 1, 2019 Category: Radiology Tags: Abdominal Imaging Source Type: research

Volume Computed Tomography Perfusion Imaging: Evaluation of the Significance in Oncologic Follow-up of Metastasizing Renal Cell Carcinoma in the Early Period of Targeted Therapy — Preliminary Results
Conclusions Our preliminary study results indicate that volume computed tomography perfusion may assess targeted therapy response of mRCC earlier than the currently used Response Evaluation Criteria in Solid Tumors. In addition, changes in BF and CL may be a promising parameter for prediction of TTP. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - May 1, 2019 Category: Radiology Tags: Abdominal Imaging Source Type: research

Bosniak IIF and III Renal Cysts: Can Apparent Diffusion Coefficient–Derived Texture Features Discriminate Between Malignant and Benign IIF and III Cysts?
Conclusions Apparent diffusion coefficient–derived texture measures may help differentiate between benign and malignant Bosniak IIF and III cysts. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - May 1, 2019 Category: Radiology Tags: Abdominal Imaging Source Type: research

Computed Tomography Cinematic Rendering in the Evaluation of Colonic Pathology: Technique and Clinical Applications
Three-dimensional (3D) visualizations of computed tomography (CT) data have found use in the display of complex anatomy and pathology. A new method of 3D CT image creation known as cinematic rendering (CR) makes use of a global lighting model to produce photorealistic images. Cinematic rendering images contain high levels of detail with shadowing and depth that are not available from traditional 3D CT techniques. As yet, the role of CR in evaluating colonic pathology has not been investigated. However, given the breadth of pathologic processes that affect the colon, including inflammatory bowel disease, diverticulitis, neo...
Source: Journal of Computer Assisted Tomography - May 1, 2019 Category: Radiology Tags: Abdominal Imaging Source Type: research

Styloid Process Osteoradionecrosis: Report of 3 Cases
We report the imaging and clinical findings in 3 patients with osteoradionecrosis of the styloid process, an uncommon consequence of radiation therapy for head and neck malignancy. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - May 1, 2019 Category: Radiology Tags: Neuroradiology Source Type: research

Diffusion Tensor Imaging of the Lateral Rectus Muscle in Duane Retraction Syndrome
Conclusion Diffusion tensor imaging metrics are valuable noninvasive tools in evaluating the microstructural abnormalities of the lateral rectus in DRS and are well correlated with degree of FDT. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - May 1, 2019 Category: Radiology Tags: Neuroradiology Source Type: research

Dual-Energy Computed Tomography for Evaluating Acute Brain Infarction of Middle Cerebral Artery Territories: Optimization of Voltage Settings in Virtual Monoenergetic Imaging
Objective To evaluate the optimal virtual monochromatic energy in dual-energy computed tomography for differentiating between infarcted areas and normal brain parenchyma. Methods We enrolled 29 patients with middle cerebral artery acute brain infarction of who underwent examination by dual-energy computed tomography. We calculated the contrast-to-noise ratio (CNR) between white or gray matter and the infarcted area (CNR(W-I) and CNR(G-I), respectively) and normalized CNRs. From the normalized CNRs, we assessed which monochromatic energy gave the best balance between the infarcted area and normal brain parenchyma. The ...
Source: Journal of Computer Assisted Tomography - May 1, 2019 Category: Radiology Tags: Neuroradiology Source Type: research

Semiautomated Characterization of Carotid Artery Plaque Features From Computed Tomography Angiography to Predict Atherosclerotic Cardiovascular Disease Risk Score
Conclusions Selected quantitative imaging carotid features extracted from the semiautomated carotid artery analysis can predict the ASCVD risk scores. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - May 1, 2019 Category: Radiology Tags: Neuroradiology Source Type: research

Imaging of Brain Infarctions: Beyond the Usual Territories
In this review, our intension is to present imaging features of several categories of uncommon cases of brain infarctions including infarctions associated with neurovascular variants, infarctions along small arterial territories, and brainstem stroke syndromes. Infarctions associated with neurovascular variants include azygos anterior cerebral artery territory infarction and artery of Percheron infarction. In the second group, we discuss anterior choroidal artery infarction and artery of Heubner infarction. The third group highlights brainstem stroke syndromes, including Claude and Benedikt syndromes due to midbrain infarc...
Source: Journal of Computer Assisted Tomography - May 1, 2019 Category: Radiology Tags: Neuroradiology Source Type: research

Threshold Isocontouring on High b-Value Diffusion-Weighted Images in Magnetic Resonance Mammography
Conclusion Threshold isocontouring on high b-value maps is a viable approach to reliably evaluate DWI data of suspicious focal lesions in magnetic resonance mammography. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - May 1, 2019 Category: Radiology Tags: Cardiothoracic and Breast Imaging Source Type: research

Effect of a New Model-Based Reconstruction Algorithm for Evaluating Early Peripheral Lung Cancer With Submillisievert Chest Computed Tomography
Objective The aim of this study was to compare a new model-based iterative reconstruction algorithm with either spatial and density resolution balance (MBIRSTND) or spatial resolution preference (MBIRRP20) with the adaptive statistical iterative reconstruction (ASIR) in evaluating early small peripheral lung cancer (SPLC) with submillisievert chest computed tomography (CT). Methods Low-contrast and spatial resolutions were assessed in a phantom and with 30 pathologically confirmed SPLC patients. Images were reconstructed using 40% ASIR, MBIRSTND, and MBIRRP20. Computed tomography value and image noise were measured by...
Source: Journal of Computer Assisted Tomography - May 1, 2019 Category: Radiology Tags: Cardiothoracic and Breast Imaging Source Type: research

The Usefulness of Fenestrated Intravenous Catheters Compared With Nonfenestrated Catheter for Cardiac Multidetector Computed Tomography
Conclusions We suggest that fenestrated IV catheter is useful in terms of higher vascular attenuation and lower injection pressure for coronary computed tomography angiography. It has a potential merit in patients with fragile and small veins. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - May 1, 2019 Category: Radiology Tags: Cardiothoracic and Breast Imaging Source Type: research

Does the Tube Voltage Affect the Characterization of Coronary Plaques on 100- and 120-kVp Computed Tomography Scans
Conclusions For the discrimination of coronary plaque components, the diagnostic performance of 100- and 120-kVp CCTA scans is comparable. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - May 1, 2019 Category: Radiology Tags: Cardiothoracic and Breast Imaging Source Type: research

Cardiovascular Magnetic Resonance Provides Evidence of Abnormal Myocardial Strain and Primary Cardiomyopathy in Marfan syndrome
Conclusions These data provide support for a primary cardiomyopathy in some Marfan syndrome patients. Cardiovascular magnetic resonance is more sensitive than echo for identifying cases with mild systolic dysfunction. Strain analysis may be more sensitive than simple LVEF assessment for identifying at-risk individuals. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - May 1, 2019 Category: Radiology Tags: Cardiothoracic and Breast Imaging Source Type: research

Circulatory Stasis or Thrombus in Left Atrial Appendage, An Easy Diagnostic Solution
Conclusions Multidetector computed tomography scanning in the prone position differentiates circulatory stasis and LAA thrombus, is clinically useful for detecting and ruling out LAA thrombus, and may be an alternative to TEE as a diagnostic tool. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - May 1, 2019 Category: Radiology Tags: Cardiothoracic and Breast Imaging Source Type: research

Computed Tomography Angiography and Magnetic Resonance Angiography of Congenital Anomalies of Pulmonary Veins
We aimed to review computed tomography and magnetic resonance angiography of congenital anomalies of pulmonary veins. Total anomalous pulmonary venous return shows all pulmonary veins drain abnormally in another site rather than left atrium. Imaging can detect anomalous veins either supracardiac, infracardiac, or mixed. Partial anomalous pulmonary venous return shows some pulmonary vein have abnormal drainage that well delineated with computed tomography angiography. Scimitar syndrome is a type of partial anomalous pulmonary venous return where the pulmonary veins of the right lung drain infracardiac and is associated with...
Source: Journal of Computer Assisted Tomography - May 1, 2019 Category: Radiology Tags: Cardiothoracic and Breast Imaging Source Type: research

Kinematic Analysis of the Distal Radioulnar Joint in Asymptomatic Wrists Using 4-Dimensional Computed Tomography–Motion Pattern and Interreader Reliability
Conclusions Using 4-dimensional CT examination, distal radioulnar joint kinematics in asymptomatic wrists demonstrate excellent interobserver agreements with increased volar ulnar subluxation with supination as detected using mRU, but not the Epi method. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - May 1, 2019 Category: Radiology Tags: Musculoskeletal Imaging Source Type: research

Value of the Cinematic Rendering From Volumetric Computed Tomography Data in Evaluating the Relationship Between Deep Soft Tissue Sarcomas of the Extremities and Adjacent Major Vessels: A Preliminary Study
Conclusions Cinematic rendering has the potential to be used to evaluate vascular invasion in cases of deep STSs of the extremities, but it should be used alongside the traditional methods such as CEAI. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - May 1, 2019 Category: Radiology Tags: Musculoskeletal Imaging Source Type: research

Dual-Energy Computed Tomography in Loosening of Revision Hip Prosthesis: A Comparison Between MARS and non-MARS Images
Purpose The aim of the study was to assess potential endoprosthesis loosening in patients after revision total hip arthroplasty, based on monochromatic dual-energy computed tomography (DECT) images obtained with and without metal artifact reduction software (MARS) and comparison with the clinical examination and hip function. Materials and Methods Twenty-five consecutive patients underwent DECT examinations. Two monochromatic data sets were generated: with MARS (75-keV MARS) and without MARS (140-keV non-MARS) and evaluated for signs of loosening, using a dedicated radiological score. The Harris Hip Score (HHS) was us...
Source: Journal of Computer Assisted Tomography - May 1, 2019 Category: Radiology Tags: Musculoskeletal Imaging Source Type: research

Comparison of Cone-Beam Computed Tomography and Multislice Computed Tomography in the Assessment of Extremity Fractures
Conclusions An excellent agreement between both imaging techniques was found. This confirms the ability of CBCT to assess fractures and its potential in the management of patients with distal limb trauma. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - May 1, 2019 Category: Radiology Tags: Musculoskeletal Imaging Source Type: research

An Ancillary Sign in the Diagnosis of Bankart and Bankart Variants in Patients With Glenohumeral Instability on Nonarthrographic Magnetic Resonance Imaging: Preglenoid Fat Thickness
Objective We investigated whether preglenoid fat thickness can be used as an ancillary sign for preliminary diagnosis of Bankart and its variants on nonarthrographic magnetic resonance imaging. Materials and Methods Sixty-eight anterior dislocation patients were included in this retrospective study. Forty-eight patients with Bankart and its variants, as detected by arthroscopy and magnetic resonance arthrography, were included in the study group. The study group was divided into osseous Bankart, labral Bankart, Perthes, and anterior labroligamentous periosteal sleeve avulsion subgroups. Twenty patients with no detecte...
Source: Journal of Computer Assisted Tomography - May 1, 2019 Category: Radiology Tags: Musculoskeletal Imaging Source Type: research

Imaging of Usual and Unusual Complication of Rotator Cuff Repair
Several complications may be encountered after rotator cuff (RC) repair. A thorough knowledge of surgical interventions, normal postoperative findings, and postoperative complications is crucial to provide a timely diagnosis, improving the clinical outcome of patients. Postoperative complications may involve RC, implanted device, osteochondral tissue, surgical-site infection, peripheral nerves, soft tissues, and vascular structures. In this review, we discuss the usual and unusual complications detectable after RC repair. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - May 1, 2019 Category: Radiology Tags: Musculoskeletal Imaging Source Type: research

Novel Hybrid Dextran-Gadolinium Nanoparticles as High-relaxivity T1 Magnetic Resonance Imaging Contrast Agent for Mapping the Sentinel Lymph Node
Conclusions Dextran-MBA-polyacrylic acid-Gd NPs were synthesized and validated by in vitro and in vivo experiments for their ability to visualize SLNs by MRI with accurate positioning and excellent biosafety, and they have great potential for clinical SLN mapping. (Source: Journal of Computer Assisted Tomography)
Source: Journal of Computer Assisted Tomography - March 1, 2019 Category: Radiology Tags: Additional Topics Source Type: research

Efficacy of the Rotational Traction Method in the Assessment of Glenohumeral Cartilage Surface Area in Computed Tomography Arthrography
Objective We aimed to investigate the efficacy of the rotational traction method in expanding the joint space and enabling the assessment of an extended surface area. Methods Sixty patients who underwent computed tomography arthrography were evaluated in the study: 30 with and 30 without the help of rotational traction. The subgroups consisted of patients with adhesive capsulitis, habitual luxation, or labral tears. Areas of obscured joint surface by coalescent cartilages were calculated using computer software, and those belonging to the traction and nontraction groups along with subgroups were compared statistically...
Source: Journal of Computer Assisted Tomography - March 1, 2019 Category: Radiology Tags: Additional Topics Source Type: research