- Poster presentation
- Open Access
Heart rate adaptive maximal resolution cardiovascular magnetic resonance myocardial stress perfusion imaging at 3.0T
© Ripley et al.; licensee BioMed Central Ltd. 2014
- Published: 16 January 2014
- Cardiovascular Magnetic Resonance
- Heart Beat
- Myocardial Stress Perfusion Imaging
- Perfusion Cardiovascular Magnetic Resonance
- Acquisition Duration
A new perfusion method which automatically adapts the acquisition duration to maximise spatial resolution whist maintaining 3 slice imaging at every heart beat was developed [Figure 1]. Ten healthy volunteers and two patients underwent adenosine stress and rest perfusion CMR on two separate occasions using a 3.0T whole body scanner and dedicated 32 channel cardiac coil. On one occasion, a conventional fixed resolution perfusion sequence was used (3 short axis slices, SENSE acceleration and in-plane resolution of 2.42 × 2.42 mm). On a second occasion, the adaptive method was used. Images were evaluated blinded to the sequence and image quality graded (1 = high, 2 = adequate, 3 = poor, 4 = unusable) and DRA was measured with electronic callipers at standardized windows settings.
Optimising the use of available imaging time during CMR myocardial perfusion imaging with heart rate adaptive shot acquisition duration is feasible and improves the acquired resolution and reduces dark rim artifact whilst maintaining image quality. The effect on diagnostic performance of perfusion CMR should be investigated.
SP is funded by a British Heart Foundation fellowship (Fs/10/62/28409) SP and JPG received an educational research grant from Philips Healthcare.
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