Pile Up
Category Acquisition Artifact Term Pile Up Definition of Pile Up Overlap Of Two Or More Events Within Detector Resolution Causing Misregistration Notes About Pile Up Mitigated By Electronics And Count Rate Management
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Cardiac Gating PET
Category Acquisition Technique Term Cardiac Gating PET Definition of Cardiac Gating PET Synchronizing PET Acquisition To ECG To Assess Cardiac Function Or Reduce Motion In Cardiac Imaging Notes About Cardiac Gating PET Used In Myocardial Perfusion And Viability Studies
Carotid Peak Systolic Velocity
Category Vascular Measurement Term Carotid Peak Systolic Velocity Definition of Carotid Peak Systolic Velocity Maximum Systolic Velocity In Carotid Artery Used To Estimate Stenosis Notes About Carotid Peak Systolic Velocity Requires Standardized Angle And Protocol
Focal Zone Placement
Category Image Control Term Focal Zone Placement Definition of Focal Zone Placement Setting The Depth Of The Focal Zone To Match The Structure Of Interest Notes About Focal Zone Placement Place At Or Slightly Below Target
Dixon Method
Category Fat-Water Separation Term Dixon Method Definition of Dixon Method Technique Acquiring In Phase And Out Of Phase Images To Separate Fat And Water Signals Notes About Dixon Method Provides Robust Fat Quantification And Uniform Suppression
Spatial Compounding
Category Imaging Technique Term Spatial Compounding Definition of Spatial Compounding Combining Images From Multiple Angles To Reduce Speckle And Enhance Borders Notes About Spatial Compounding May Reduce Shadowing And Improve Lesion Conspicuity
Contrast Enhanced CT
Category Technique Term Contrast Enhanced CT Definition of Contrast Enhanced CT Use Of Iodinated Contrast Agents To Enhance Vascular And Tissue Contrast On CT Notes About Contrast Enhanced CT Includes Bolus Timing And Multiphasic Protocols
Nephrographic Phase
Category Renal Imaging Phase Term Nephrographic Phase Definition of Nephrographic Phase Intermediate Postcontrast Phase Optimized For Parenchymal Enhancement And Tumor Detection Notes About Nephrographic Phase Used In CT Urography
Short Tau Inversion Recovery (STIR)
Category Fat Suppression Term Short Tau Inversion Recovery (STIR) Definition of Short Tau Inversion Recovery (STIR) IR Sequence With Short TI To Null Fat Signal For Musculoskeletal Imaging Notes About Short Tau Inversion Recovery (STIR) Useful For Edema Detection; Not Compatible With Gadolinium Timing
X Plane Imaging
Category Advanced Display Term X Plane Imaging Definition of X Plane Imaging Simultaneous Orthogonal Plane Display Derived From A Single Acquisition Notes About X Plane Imaging Enhances Spatial Understanding