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3.0 T contrast-enhanced whole-heart coronary magnetic resonance angiography for the evaluation of the cardiac venous anatomy
Journal of Cardiovascular Magnetic Resonance volume 12, Article number: O89 (2010)
In cardiac resynchronization therapy (CRT), left ventricular (LV) pacing is achieved by positioning the LV lead in one of the tributaries of the coronary sinus (CS). Pre-implantation knowledge of the venous anatomy may help to decide whether transvenous LV lead placement for CRT is feasible. A recent study using navigator-gated whole-heart steady-state free precession coronary artery imaging demonstrates that MR can depict the anatomy of the venous system at 1.5 T . Contrast-enhanced whole-heart coronary magnetic resonance angiography (CMRA) has been used to evaluate coronary artery disease at 3.0 T . The purpose of the work is to assess whether contrast-enhanced whole-heart CMRA can be used to evaluate the coronary venous anatomy as well.
To evaluate the value of 3.0 T contrast-enhanced whole-heart CMRA to depict the cardiac venous anatomy.
Fifty-one subjects (45 patients and 6 volunteers; 26 men; age 59 ± 11 years) underwent contrast-enhanced whole-heart CMRA at 3.0 T (MAGNETOM Tim Trio, Siemens) after written informed consent was obtained. Data acquisition was performed using ECG-triggered, navigator-gated, inversion-recovery prepared, segmented gradient-echo sequence with slow infusion of 0.15 mmol/kg gadobenate dimeglumine. A 32-element cardiac coil was used for data acquisition. Images were retrospectively analyzed and the visibility of the coronary veins was graded visually using a 4-point scale (1: poor, 2: moderate, 3: good, and 4: excellent). The presence of the following cardiac veins was evaluated: CS, posterior interventricular vein (PIV), posterior vein of the left ventricle (PVLV), left marginal vein (LMV), vein of Marshall (VM), and anterior interventricular vein (AIV).
Data from 3 subjects were discarded on the basis of poor image quality. Table 1 lists the anatomic observations and quantitative data of the PIV, PVLV, LMV, and AIV. Reconstructed image examples are shown in Fig. 1a (normal) and b (variation). The angle of the CS ostium was 59° ± 7°. The visibility is displayed in Table 2.
3.0 T contrast-enhanced whole-heart CMRA can clearly depict the cardiac venous anatomy.
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Ma, H., Yang, Q., Li, H. et al. 3.0 T contrast-enhanced whole-heart coronary magnetic resonance angiography for the evaluation of the cardiac venous anatomy. J Cardiovasc Magn Reson 12, O89 (2010). https://doi.org/10.1186/1532-429X-12-S1-O89
- Cardiac Resynchronization Therapy
- Coronary Sinus
- Leave Ventricular Lead
- Gadobenate Dimeglumine
- Venous Anatomy