الفهرس 
Tetralogy of FallotOnly 14 pages are availabe for public view
 |  | from | 164 |  |  |
| | | from | 164 | | |
Abstract
Summary
Tetralogy of Fallot (TOF) is the most common cyanotic CHD which
classically consists of a tetrad of VSD, aortic overriding, RVOT obstruction,
and RV hypertrophy14.
Generally, echocardiography is the initial modality of choice for
establishing the diagnosis. However, 4D CMR flow provides multiple
options for both qualitative and quantitative assessment of pulmonary blood
flow, ranging from basic measurements such as flow volumes and velocity,
to more advanced features such as the visualization of flow patterns in
cardiac chambers and great vessels, as well as the assessment of
hemodynamic effects at the vessel wall and myocardium109.
The aim of this work was to assess the flow pattern of the right
ventricle outflow and pulmonary arteries in surgically corrected tetralogy of
Fallot patients by 4D CMR flow. In addition, we compared quantitative
evaluation of flow over pulmonary arteries with 4D and 2D phase-contrast
measurements performed during the same scanning session.
The study was conducted on two groups; group (1) included 40
patients post-surgical repair of TOF, and group (II) included 15 healthy
volunteer subjects as a control. group (1) was further subdivided into three
subgroups according to the method of surgical repair; group (Ia) included 16
patients who were repaired with RV-PA conduit, group (Ib) included 12
patients who were repaired with RVOT patch, and group (Ic) included 12
patients who were repaired with trans-annular patch.