ACCURACY OF CONTRAST ENHANCED MR LUNG PERFUSION COMPARED TO PERFUSION SCINTIGRAPHY IN DIAGNOSING CHRONIC THROMBOEMBOLIC PULMONARY HYPERTENSION. - Rajaram, S.; Swift, A. J.; Capener, D.; Hill, C.; Davies, C.; Elliot, R.; Hurdman, J.; Condliffe, R.; Wild, J. M.; Kiely, D. G. (Thorax, 2011)