Items tagged “imaging technology”
14 results found
Article
Echo planar imaging
Echo planar imaging (EPI) is performed using a pulse sequence in which multiple echoes of different phase steps are acquired using rephasing gradients instead of repeated 180-degree radiofrequency pulses following the 90°/180° in a spin echo sequence. This is accomplished by rapidly reversing th...
Article
Doppler angle correction
Doppler angle correction refers to an imaging post-processing method used to adjust for the effects of insonation angle on the Doppler shift.
Measurement of flow velocity with Doppler imaging is dependent on the angle between the ultrasound beam and the target (insonation angle), with the maxim...
Article
T1 mapping - myocardium
T1 mapping is a magnetic resonance imaging technique used to calculate the T1 time of a certain tissue and display them voxel-vice on a parametric map. It has been used for myocardial tissue characterization 1-6 and has been investigated for other tissues 5.
Terminology
Native T1 is referred t...
Article
T2 mapping - myocardium
T2 mapping is a magnetic resonance imaging technique used to calculate the T2 times of a certain tissue and display them voxel-vice on a parametric map. It has been used for tissue characterization of the myocardium 1-5 and has been investigated for cartilage 6,7 and other tissues 4.
T2 mapping...
Article
T2* mapping - myocardium
T2* mapping is a magnetic resonance imaging technique used to calculate the T2* time of tissue and display them voxel-vice on a parametric map. It is used for myocardial tissue characterization 1-4 and has been investigated for other tissues 5,6.
Clinical applications
T2* relaxation time has b...
Article
Cardiac tissue characterization
Cardiac tissue characterization is a term for an approach in cardiac imaging used for the evaluation of the myocardial tissue in respect to its inherent properties as opposed to cardiac function e.g. in cine or strain imaging.
In cardiac magnetic resonance imaging tissue characterization typica...
Article
Cardiac strain imaging
Strain imaging is a cardiac imaging technique that detects ventricular deformation patterns and functional abnormalities before they become obvious as regional wall motion abnormalities on conventional cine imaging or echo. It has become more popular lately due to several technological improveme...
Case
First CT scanner
Published
15 Dec 2020
32% complete
Photo
Case
Aliasing artifact - 3D MRI sequence
Published
13 Jul 2022
59% complete
MRI
Case
Intensifying screen layers
Published
09 Apr 2023
29% complete
Diagram
Case
X-ray film layers
Published
23 Apr 2023
29% complete
Diagram
Case
Gamma camera structure
Published
19 Aug 2023
22% complete
Article
Amide proton transfer imaging
Amide proton transfer (APT) imaging is the most common type of chemical exchange saturation transfer technique that generates image contrast due to proton exchange between labeled protons in solute and free water protons1. APT imaging does not require exogenous gadolinium-based contrast and thus...
Article
Imaging technology article structure
Articles about imaging technology require a different structure than articles about disease. Articles with this structure are generally assigned to the imaging technology section and may also be assigned to a specific system if appropriate.
======================================================...
Unable to process the form. Check for errors and try again.