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La Radiologia medica · Dec 2014
Myocardial perfusion defects in scleroderma detected by contrast-enhanced cardiovascular magnetic resonance.
- Nicolò Schicchi, Gianluca Valeri, Gianluca Moroncini, Giacomo Agliata, Luca Salvolini, Armando Gabrielli, and Andrea Giovagnoni.
- Radiologia Pediatrica e Specialistica, Azienda Ospedaliero Universitaria, Ospedali Riuniti di Ancona, Via Conca 71, 60126, Torrette, Ancona, Italy. schicchi.n@alice.it.
- Radiol Med. 2014 Dec 1; 119 (12): 885-894.
PurposeThe authors investigated whether contrast-enhanced cardiovascular magnetic resonance (CMR) imaging may be used to detect early cardiac involvement in patients with systemic sclerosis (SSc).Materials And MethodsTwenty-six SSc patients (nine with diffuse cutaneous SSc and 17 with limited cutaneous SSc) and 13 sex- and age-matched healthy controls (HC) were studied. Contrast-enhanced CMR allowed the analysis of first-pass images (areas of hypo-enhancement indicating perfusion defects) and delayed images (persistent hyper-enhancement indicating fibrosis). Clinical variables including disease duration and presence of major visceral complications of SSc were investigated in each patient.ResultsPerfusion defects were detected in 53.8 % of SSc patients but in none of the HC. Perfusion abnormalities were detected in 28.6 % of SSc patients with disease duration less than 2 years and in 29.2 % of asymptomatic SSc patients. Delayed contrast enhancement was present in 25 % of SSc patients but not in HC. All patients with delayed contrast enhancement showed first-pass hypoperfusion. Right ventricular wall thickness was significantly increased in all SSc patients when compared to HC (p < 0.001); a similar trend was observed when SSc patients without pulmonary arterial hypertension were analysed (p < 0.04). A trend to lower end-diastolic and end-systolic right ventricular volumes in SSc versus HC was observed (p < 0.05 and p < 0.04, respectively).ConclusionsMyocardial hypoperfusion is common in SSc and occurs early in the course of the disease. Co-localisation of perfusion defects and delayed contrast enhancement indicative of fibrosis suggests that myocardial hypoxia may play a role in the pathogenesis of myocardial fibrosis.
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