This study will compare the accuracy of a real-time Cine sequence in assessing cardiac volumetry.
This is a single-centre prospective study involving up to 570 patients with known or suspected cardiac disease referred for routine clinical cardiovascular magnetic resonance (CMR) assessment at Glenfield General Hospital, Leicester. In addition to standard multi-breath-hold steady-state free precession (SSFP) imaging (undertaken as part of the routine scan), each patient will also undergo additional imaging with a non-breath-hold multi-slice real-time cine sequence. The primary outcome is the assessment of cardiac volumetry and function (end-diastolic volume, end-systolic volume, stroke volume, ejection fraction and myocardial mass) as measured by (1) the standard multi-breath-hold SSFP technique and (2) the non-breath-hold multi-slice real-time cine sequence. Secondary outcome measures will be (1) the time required for each scan, and (2) image quality for each scan. An additional secondary outcome will be to compare indexed cardiac volumes with those indexed according to measured body-surface area.
Study Type
OBSERVATIONAL
Enrollment
570
CMR scan at 3 Tesla
Glenfield Hospital
Leicester, Leics, United Kingdom
RECRUITINGCardiac volumetric assessment 1
Left ventricular ejection fraction
Time frame: 1 day
Cardiac volumetric assessment 2
Left ventricular end-diastolic volume
Time frame: 1 day
Cardiac volumetric assessment 3
Left ventricular myocardial mass
Time frame: 1 day
Cardiac volumetric assessment 4
Right ventricular ejection fraction
Time frame: 1 day
Cardiac volumetric assessment 5
Right ventricular end-diastolic volume
Time frame: 1 day
Cardiac strain assessment 1
Left ventricular global longitudinal strain
Time frame: 1 day
Cardiac strain assessment 2
Left ventricular global circumferential strain
Time frame: 1 day
Time
the time required for each scan under evaluation (real-time Cine and standard Cine)
Time frame: 1 day
Image quality assessment
Image quality of each scan component, assessed visually on a 4-point score - excellent (3), good (2), moderate (1) and poor (0).
Time frame: 1 day
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Body-surface area
planimetered body-surface area
Time frame: 1 day