N/A N=23 Computed Tomography Versus Standard 2D Mammography Versus 3D Tomosynthesis
Breast Cancer
Primary: Beta of CT Coronal View — 1.75 power-law slope(B)
Clinical Trial Search
Completed trials with posted results — search by concept, filter by the parameters that matter at the bedside.
N/A N=34 Computed Tomography Arteriograms (CTA) Volume Dose Reduction Study
Aortic Aneurysm · Contrast Induced Nephropathy · Aortic and Arterial Anomalies
Primary: Ascending Sinotubular Junction Measurement — 246.4; 287.5 Hounsfield units
N/A N=67 Translational Development of Photon-counting CT Imaging
Cancer · Inflammatory Disease · Vascular Diseases
Primary: Mean Difference in Diagnostic Image Quality Grading of Photon Counting CT vs Conventional CT Images. — 0.947368421 score on a scale
N/A N=175 Focused Field of View Calcium Scoring Prior to Coronary CT Angiography
Radiation Safety · Coronary Computed Tomography Angiography · Coronary Artery Disease
Primary: Qualitative Quality Comparison — 4; 4 score on a scale
N/A N=1,392 Computed Tomography Coronary Angiogram (CTCA) Versus Traditional Care in Emergency Department Assessment of Potential Acute Coronary Syndromes (ACS)
Chest Pain · Acute Coronary Syndrome · Acute Myocardial Infarction
Primary: Rates of Major Cardiac Events (AMI or Cardiac Death) Within 30 Days — 0; 0; 0; 10 Participants
N/A N=75 Validation of a Computed Tomography (CT) Based Fractional Flow Reserve (FFR) Software Using the 320 Detector Aquilion ONE CT Scanner.
Atherosclerosis, Coronary
Primary: Comparison of CT Based FFR With Invasive FFR, ROC Analysis — 0.8 probability of accurate diagnosis
Phase 4 N=150 Thoracoabdominal Arortic CTA Study
Thoracic Aortic Aneurysm
Primary: Radiation Dose — 35.1; 25.4; 25.5 mSv
N/A N=10 Evaluation of Coronary Artery Calcification Using Gated Stationary Chest Tomosynthesis
Coronary Artery Disease
Primary: Comparison of CT Derived CACS and Tomosynthesis Scores Correlation
N/A N=100 CTEPH Identification an Standard Computerised Tomography Pulmonary Angiography in Pulmonary Embolism Patients
CTEPH · Pulmonary Embolism · Early Diagnosis
Primary: To Identify the Accuracy of Routine CTPA for the Distinction of CTEPH From Acute PE. — 70; 70 Sensitivity
Phase 3 N=33 Comparison of Isovue 370 vs. Standard Protocol in Coronary Computed Tomographic Angiography (CTA)
Coronary Computed Tomographic Angiography
Primary: Contrast to Noise Ratio — 18.6; 20.5 CNR
N/A N=23 A Study Using Cone Beam CT for Head and Neck Cancer
Head and Neck Cancer
Primary: Rate of Movement of Normal Tissue
Phase 4 N=2,776 Study of Tomography of Nephrolithiasis Evaluation
Urolithiasis
Primary: High Risk Diagnosis With Complication — 6; 3; 2 participants
N/A N=9 Computed Tomography for Evaluating Supination-external Rotation Type Ankle Fractures
Supination-external Rotation Ankle Fractures
Primary: Medial Clear Space Distance in the Ankle Joint — 1.41 mm
N/A N=586 The Value of CT Fractional Flow Reserve
Angina, Stable Chest Pain
Primary: Comparison of CCTA Alone to FFR-CT After CCTA — 90.97; 92.73; 22.86; 69.71 percent — p=1.00
Phase 3 N=1,000 Multicenter Study to Rule Out Myocardial Infarction by Cardiac Computed Tomography
Acute Coronary Syndrome · Myocardial Infarction · Unstable Angina Pectoris
Primary: Length of Hospital Stay — 23.2; 30.8 hours
N/A N=105 Ultra Low Dose CT for CACS and AC of SPECT
Coronary Artery Disease
Primary: Agreement and Correlation of Coronary Artery Calcium Score Obtained From Ultra-low-dose and Standard CT — 212; 178 Agatston score
N/A N=285 Determination of Fractional Flow Reserve by Anatomic Computed Tomographic Angiography
Coronary Artery Disease
Primary: Percentage of Participants With Diagnostic Accuracy of CCTA Plus FFRCT and CCTA Alone — 73; 64 percentage of participants
N/A N=50 3D Rotational CT Angiogram With Embolization Guidance and CBCT in Prostatic Artery Embolization
Enlarged Prostate
Primary: Time for Prostatic Artery Catheterization — 273.40; 181.71; 206.38; 155.96 seconds
N/A N=38 Clinical Evaluation of Primary Sampling Scatter Correction for Chest Tomosynthesis
Pulmonary Nodule, Solitary · Pulmonary Nodule, Multiple
Primary: Reader Confidence in s-DCT Images Compared to Conventional CT (Units on a Scale) — -0.43 Units on a scale
N/A N=102 Left Atrial Imaging Prior to Cardioversion: Leveraging Computed Tomography to Rule Out Thrombus
Atrial Fibrillation
Primary: Time to Imaging — 28.1; 7.1 hours
N/A N=20 CT Analysis of the Patellofemoral Joint in Patients Having Knee Surgery
Patellar (or Kneecap) Instability and Mal-alignment
Primary: Congruence Angle CBCT — 26.7; 3 degrees
N/A N=75 Evaluation of Breast CT
Breast Cancer
Primary: Comparison of Pre- and Post- Contrast Breast Computed Tomography With Pre- and Post- Contrast Magnetic Resonance Imaging. — -0.04 probability — p=0.05
N/A N=864,080 CT DOSE Collaboratory
Ionizing Radiation Exposure · Quality Improvement
Primary: Change in Mean Effective Dose (ED) — -0.13; -0.81; -0.14; -0.26 Millisieverts (mSv)
Phase 4 N=59 Comprehensive Cardiothoracic Dual Source CT for the Early Triage of Patients With Acute Chest Pain
Chest Pain Syndrome
Primary: Length of Hospital Stay — 7.63; 8.20 Hours — p=0.79
N/A N=30 Wrist Fracture Evaluation With a Desktop Orthopedic Tomosynthesis System
Fracture
Primary: Sensitivity — 96.7 percent of scans with a fracture
N/A N=41 Evaluation of a Cone-beam CT Scanner for Image Guided Radiotherapy
Head and Neck Cancer · Lung Cancer · Breast Cancer
Primary: Image Quality — 6.6; 9.8; 11.2; 8.9 standard deviation of HU values
N/A N=139 Non-Contrast 4DCT to Detect Pulmonary Thromboembolic Events
Pulmonary Thromboembolisms · Pulmonary Embolism
Primary: Correlation of 4DCT Identified Perfusion With SPECT/CT Identified Perfusion — 0.45 Spearman correlation
N/A N=1,748 Rapid Assessment of Potential Ischaemic Heart Disease With CTCA
Acute Coronary Syndrome
Primary: All-cause Death or Subsequent Non-fatal Type 1 or Type 4b MI at One Year Measured as Time to First Such Event. — 51; 53 Participants
N/A N=120 Multivariable Assessment of Coronary Artery Disease Using Cardiac CT Imaging
Coronary Disease
Primary: Ability to Detect Stress-induced Myocardial Perfusion Abnormalities by Analysis of MDCT Images Confirmed by Coronary Angiography and/or SPECT. — 78 % accurately detected…
N/A N=17 Evaluation of a Carbon Nanotube Enabled Solid-State Head CT
Head Trauma
Primary: Sensitivity of Stationary Head CT for the Detection of a Hemorrhage — 33 percent accurately predicted — p=<0.0001