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- Nuclear Medicine & Medical;; Imaging (5)
- Nuclear Medicine & Medical Imaging (4)
- Life Sciences & Biomedicine (2)
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- 18F-fluorodeoxyglucose;; Bone scintigraphy;; F-18;; Fluoride-positron emission tomography;; Gallium;; Infection;; Labeled leukocytes;; Positron emission tomography;; Prosthetic joint (1)
- 80 and over;; Carotid Stenosis/*diagnosis;; Female;; Humans;; Ischemic Attack (1)
- 99mTc-sestamibi;; Mibi;; Parathyroid;; Spect/ct;; filtered back projection;; iterative reconstruction (1)
- ACUTE ISCHEMIC-STROKE;; TISSUE-PLASMINOGEN-ACTIVATOR;; HYPERACUTE;; INTRACEREBRAL HEMORRHAGE;; DIGITAL-SUBTRACTION-ANGIOGRAPHY;; AMERICAN-HEART-ASSOCIATION;; COOPERATIVE ACUTE STROKE;; ACUTE HEMISPHERIC;; STROKE;; CEREBRAL-ARTERY SIGN;; THROMBOLYTIC THERAPY;; CT-ANGIOGRAPHY;; Clinical Neurology;; Neuroimaging;; Radiology (1)
- ANEURYSMAL SUBARACHNOID HEMORRHAGE;; PERFUSION-CT;; CEREBRAL PERFUSION;; ACUTE STROKE;; ANGIOGRAPHY;; PARAMETERS;; VALUES;; Clinical Neurology;; Neuroimaging;; Radiology (1)
- Adolescent;; Adult;; Anisotropy;; Brain Concussion/ diagnosis/pathology;; Case-Control Studies;; Diffusion Tensor Imaging/ methods;; Female;; Glasgow Coma Scale;; Humans;; Image Interpretation (1)
- Adult;; Aged;; Aged (1)
- Adult;; Aged;; Biopsy;; Chi-Square Distribution;; Contrast Media/diagnostic use;; Gadolinium DTPA/diagnostic use;; Humans;; Magnetic Resonance Imaging/*methods;; Male;; Middle Aged;; Population Surveillance;; Predictive Value of Tests;; Prostate-Specific Antigen/blood;; Prostatic Neoplasms/*pathology;; Retrospective Studies;; Sensitivity and Specificity (1)
- Adult;; Blood-Brain Barrier/*radiography;; Cerebral Infarction/*etiology/*radiography;; Female;; Humans;; Male;; Middle Aged;; Permeability;; Retrospective Studies;; Sensitivity and Specificity;; Subarachnoid Hemorrhage/*complications/*radiography;; Tomography (1)
- Algorithms. Blood-Brain Barrier / *radiography. Humans. Models (1)
- Arterial input function;; case-fatality;; acute stroke;; vasospasm;; epidemiology;; impairment;; predictors;; metabolism;; infarct;; rates;; Neurosciences & Neurology;; Radiology (1)
- Asymptomatic Diseases;; Carotid Artery Diseases/complications/ultrasonography;; Carotid Stenosis/complications/*ultrasonography;; Humans;; Plaque (1)
- Atherectomy;; calcification;; cardiovascular intervention;; clinical trial;; coronary;; ELUTING STENT IMPLANTATION;; SPEED ROTATIONAL ATHERECTOMY;; SINGLE-CENTER;; EXPERIENCE;; ANGIOGRAPHIC FOLLOW-UP;; ARTERY-DISEASE;; INTRAVASCULAR;; ULTRASOUND;; BALLOON ANGIOPLASTY;; CLINICAL-OUTCOMES;; COMPLEX LESIONS;; INTERVENTION;; Cardiac & Cardiovascular Systems (1)
- Atherosclerotic/*diagnosis;; Sensitivity and Specificity;; Stroke/*diagnosis;; Tomography (1)
- Atherosclerotic/complications/*ultrasonography;; Risk Assessment;; Stroke/*etiology;; carotid stenosis;; plaque;; risk factor;; stroke;; ultrasound (1)
- Atp7b;; Wilson’s disease;; diagnosis;; metal complex;; positron emission tomography;; radiocopper;; therapy (1)
- Brachiocephalic vein;; EC-IC bypass;; Infratemporal approach;; Internal;; maxillary artery;; CAROTID-ARTERY;; ANEURYSMS;; REVASCULARIZATION;; SURGERY;; VEIN;; DISEASE;; GRAFTS;; FOSSA;; Clinical Neurology;; Surgery (1)
- CHILDREN (1)
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- COMPUTED-TOMOGRAPHY;; OUTCOME MEASURES;; VASOSPASM;; ANGIOGRAPHY;; DEFINITION;; MANAGEMENT;; SURGERY;; Clinical Neurology;; Neuroimaging;; Radiology (1)
- Clinical Neurology (1)
- Cognitive Infected prosthetic joints;; Gallium-68 labeled leukocytes;; Fluorine-18-fluorodeoxyglucose;; Positron emission tomography/computed;; tomography;; total-hip-arthroplasty;; white blood-cells;; positron-emission-tomography;; in-111 labeled leukocyte;; hexamethylpropylene amine oxime;; sulfur;; colloid scintigraphy;; bone-marrow scintigraphy;; fdg-pet;; musculoskeletal;; infection;; periprosthetic infection;; Radiology (1)
- Computed tomography perfusion;; deconvolution;; low-dose;; radiation dose;; safety;; regularization;; tensor total variation;; cerebral-blood-flow;; high-resolution measurement;; tracer bolus passages;; image quality;; acute stroke;; brain;; tomography;; noise;; quantification;; reconstruction;; Computer Science;; Engineering;; Imaging Science & Photographic;; Technology;; Radiology (1)
- Computer-Assisted / *methods. Signal-To-Noise Ratio. Stroke / *radiography. Tomography (1)
- Computer-Assisted;; Male;; Middle Aged;; Nerve Fibers (1)
Articles 61 - 64 of 64
Full-Text Articles in Radiology
Cost-Effectiveness Of Ct Angiography And Perfusion Imaging For Delayed Cerebral Ischemia And Vasospasm In Aneurysmal Subarachnoid Hemorrhage, P. C. Sanelli, A. Pandya, A. Z. Segal, A. Gupta, S. Hurtado-Rua, J. Ivanidze, K. Kesavabhotla, D. Mir, A. I. Mushlin, M. G. Hunink
Cost-Effectiveness Of Ct Angiography And Perfusion Imaging For Delayed Cerebral Ischemia And Vasospasm In Aneurysmal Subarachnoid Hemorrhage, P. C. Sanelli, A. Pandya, A. Z. Segal, A. Gupta, S. Hurtado-Rua, J. Ivanidze, K. Kesavabhotla, D. Mir, A. I. Mushlin, M. G. Hunink
Journal Articles
BACKGROUND AND PURPOSE: Delayed cerebral ischemia and vasospasm are significant complications following SAH leading to cerebral infarction, functional disability, and death. In recent years, CTA and CTP have been used to increase the detection of delayed cerebral ischemia and vasospasm. Our aim was to perform comparative-effectiveness and cost-effectiveness analyses evaluating CTA and CTP for delayed cerebral ischemia and vasospasm in aneurysmal SAH from a health care payer perspective. MATERIALS AND METHODS: We developed a decision model comparing CTA and CTP with transcranial Doppler sonography for detection of vasospasm and delayed cerebral ischemia in SAH. The clinical pathways were based on …
Potholes And Molehills: Bias In The Diagnostic Performance Of Diffusion-Tensor Imaging In Concussion, R. Watts, A. Thomas, C. G. Filippi, J. P. Nickerson, K. Freeman
Potholes And Molehills: Bias In The Diagnostic Performance Of Diffusion-Tensor Imaging In Concussion, R. Watts, A. Thomas, C. G. Filippi, J. P. Nickerson, K. Freeman
Journal Articles
PURPOSE: To investigate the extent of bias in a clinical study involving "pothole analysis" of diffusion-tensor imaging (DTI) data used to quantify white matter lesion load in diseases with a heterogeneous spatial distribution of pathologic findings, such as mild traumatic brain injury (TBI), and create a mathematical model of the bias. MATERIALS AND METHODS: Use of the same reference population to define normal findings and make comparisons with a patient group introduces bias, which potentially inflates reported diagnostic performance. In this institutional review board-approved prospective observational cohort study, DTI data were obtained in 20 patients admitted to the emergency department …
Radiation Absorbed Dose To The Basal Ganglia From Dopamine Transporter Radioligand F-18-Fpcit, W. Robeson, V. Dhawan, Y. L. Ma, D. Bjelke, C. Margouleff, T. Chaly, D. Eidelberg
Radiation Absorbed Dose To The Basal Ganglia From Dopamine Transporter Radioligand F-18-Fpcit, W. Robeson, V. Dhawan, Y. L. Ma, D. Bjelke, C. Margouleff, T. Chaly, D. Eidelberg
Journal Articles
Our previous dosimetry studies have demonstrated that for dopaminergic radiotracers, F-18-FDOPA and F-18-FPCIT, the urinary bladder is the critical organ. As these tracers accumulate in the basal ganglia (BG) with high affinity and long residence times, radiation dose to the BG may become significant, especially in normal control subjects. We have performed dynamic PET measurements using F-18-FPCIT in 16 normal adult subjects to determine if in fact the BG, although not a whole organ, but a well-defined substructure, receives the highest dose. Regions of interest were drawn over left and right BG structures. Resultant time-activity curves were generated and used …
Prostate Cancer: Can Multiparametric Mr Imaging Help Identify Patients Who Are Candidates For Active Surveillance?, B. Turkbey, H. Mani, O. Aras, J. Ho, A. Hoang, A. R. Rastinehad, H. Agarwal, V. Shah, M. Bernardo, P. L. Choyke, +8 Additional Authors
Prostate Cancer: Can Multiparametric Mr Imaging Help Identify Patients Who Are Candidates For Active Surveillance?, B. Turkbey, H. Mani, O. Aras, J. Ho, A. Hoang, A. R. Rastinehad, H. Agarwal, V. Shah, M. Bernardo, P. L. Choyke, +8 Additional Authors
Journal Articles
PURPOSE: To determine whether multiparametric magnetic resonance (MR) imaging can help identify patients with prostate cancer who would most appropriately be candidates for active surveillance (AS) according to current guidelines and to compare the results with those of conventional clinical assessment scoring systems, including the D'Amico, Epstein, and Cancer of the Prostate Risk Assessment (CAPRA) systems, on the basis of findings at prostatectomy. MATERIALS AND METHODS: This institutional review board-approved HIPAA-compliant retrospectively designed study included 133 patients (mean age, 59.3 years) with a mean prostate-specific antigen level of 6.73 ng/mL (median, 4.39 ng/mL) who underwent multiparametric MR imaging at 3.0 …