Cardiac Mapping & Viability Imaging
Learn about cardiac mapping and viability imaging, which are application-specific cardiac protocols built on established sequence families.
MOLLI
- Design: IR-prepared bSSFP Look-Locker acquisition.
- Key characteristics: Quantitative myocardial T1 mapping.
- Clinical applications: Cardiac tissue characterization.
- Vendors: All vendors MOLLI.
T2-prepared SSFP
- Design: T2-preparation module preceding bSSFP readout.
- Key characteristics: Controlled T2 weighting combined with high SNR efficiency; enables quantitative T2 mapping.
- Clinical applications: Myocardial T2 mapping, edema assessment.
- Vendors:
- GE: T2-prep SSFP
- Siemens: T2-prep TrueFISP
- Philips: T2-prep b-TFE
- Canon: T2-prep SSFP
- Fujifilm: T2-prep SSFP
Perfusion imaging (GRE)
- Design: Saturation-prepared spoiled GRE during contrast passage.
- Key characteristics: High temporal resolution for first-pass kinetics.
- Clinical applications: Myocardial perfusion imaging.
- Vendors:
- GE: Perfusion GRE
- Siemens: FLASH Perfusion
- Philips: FFE Perfusion
- Canon: GRE Perfusion
- Fujifilm: GRE Perfusion
TI Scout
- Design: IR-prepared spoiled GRE with multiple inversion times.
- Key characteristics: Determines optimal inversion time for LGE imaging.
- Clinical applications: Cardiac protocol planning.
- Vendors: All vendors TI Scout.
Late Gadolinium Enhancement (LGE)
- Design: ECG-triggered IR-prepared spoiled GRE.
- Key characteristics: Nulls healthy myocardium to reveal fibrosis.
- Clinical applications: Myocardial scar imaging.
- Vendors: All vendors LGE.