Segmental biventricular analysis of myocardial function using high temporal and spatial resolution tissue phase mapping.

Menza, Marius; Föll, Daniela; Hennig, Jürgen; Jung, Bernd (2018). Segmental biventricular analysis of myocardial function using high temporal and spatial resolution tissue phase mapping. Magma, 31(1), pp. 61-73. Springer 10.1007/s10334-017-0661-9

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OBJECTIVE Myocardial dysfunction of the right ventricle (RV) is an important indicator of RV diseases, e.g. RV infarction or pulmonary hypertension. Tissue phase mapping (TPM) has been widely used to determine function of the left ventricle (LV) by analyzing myocardial velocities. The analysis of RV motion is more complicated due to the different geometry and smaller wall thickness. The aim of this work was to adapt and optimize TPM to the demands of the RV. MATERIALS AND METHODS TPM measurements were acquired in 25 healthy volunteers using a velocity-encoded phase-contrast sequence and kt-accelerated parallel imaging in combination with optimized navigator strategy and blood saturation. Post processing was extended by a 10-segment RV model and a detailed biventricular analysis of myocardial velocities was performed. RESULTS High spatio-temporal resolution (1.0 × 1.0 × 6 mm3, 21.3 ms) and the optimized blood saturation enabled good delineation of the RV and its velocities. Global and segmental velocities, as well as time to peak velocities showed significant differences between the LV and RV. Furthermore, complex timing of the RV could be demonstrated by segmental time to peak analysis. CONCLUSION High spatio-temporal resolution TPM enables a detailed biventricular analysis of myocardial motion and might provide a reliable tool for description and detection of diseases affecting left and right ventricular function.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Department of Radiology, Neuroradiology and Nuclear Medicine (DRNN) > Institute of Diagnostic, Interventional and Paediatric Radiology

UniBE Contributor:

Jung, Bernd

Subjects:

600 Technology > 610 Medicine & health

ISSN:

1352-8661

Publisher:

Springer

Language:

English

Submitter:

Nicole Rösch

Date Deposited:

30 Jan 2018 13:35

Last Modified:

16 Feb 2018 01:31

Publisher DOI:

10.1007/s10334-017-0661-9

PubMed ID:

29143137

Uncontrolled Keywords:

Biventricular analysis Phase-contrast velocity mapping Right ventricle Tissue Phase Mapping

BORIS DOI:

10.7892/boris.108415

URI:

https://boris.unibe.ch/id/eprint/108415

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