2D tranthoracic Echocardiographic Assessment of left Ventricular Systolic Function

1. By
Waseem Omar
A. Lecturer of cardiology

2.  The quantification of cardiac chamber size and
function is the cornerstone of cardiac imaging,
 with tranthoracic echocardiography being the most
commonly used noninvasive modality because of its
unique ability to provide real-time images of the
beating heart, combined with its availability and
portability.

3. Agenda
 Transducer and Imaging Planes.
 Echo modes.
 Measurement of LV size.
 LV Global Systolic Function.
 LV Regional Function.
 Pitfalls of Accurate LV Measurements

4. Transducer and Imaging Planes

5. Transducer and Imaging Planes

6. Transducer and Imaging Planes

7. Transducer and Imaging Planes

8. Transducer and Imaging Planes

9. Transducer and Imaging Planes

10. Transducer and Imaging Planes

11. Transducer and Imaging Planes

12. Transducer and Imaging Planes

13. Transducer and Imaging Planes

14. Transducer and Imaging Planes

15.  Optimal image acquisition is influenced by patient
characteristics, operator skill, and instrument settings.
 Proper patient positioning helps to optimize imaging of
parasternal and apical views.
 Images are best acquired at end-expiration or during quiet
respiration.

16. Echo modes
 B mode (2D mode):
Ultrasound is transmitted along several (90 to 120) scan
lines over a wide (45° to 90°) arc and many (20 to 30)
times per second to create real time image.
 useful to evaluate the anatomy of the heart and the
relationship between different structures.
 Thickness of ventricular walls and dimensions of
chambers can be measured.

17. Echo modes
 M mode:
 ultrasound is transmitted and received along only one scan
line.
 displayed as a continuous tracing with two axes.
The vertical axis represents distance between the moving
structure and the transducer. The horizontal axis
represents time.

18. Echo modes