Добавил:
Опубликованный материал нарушает ваши авторские права? Сообщите нам.
Вуз: Предмет: Файл:
Atlas of Human Body Ultrasound Scanning_ Methods and Diagnostic Applications ( PDFDrive ).pdf
Скачиваний:
177
Добавлен:
29.07.2022
Размер:
40.13 Mб
Скачать

90

S. He

 

 

2.15\ Coronary Sinus View

 

a1

a2

RV

LV

RA

CS

 

 

LA

b1

b2

RV

LV

RA

CS

 

LA

Fig. 6.19  Coronary sinus view. (a) Diastole. (b) Systole

2.15.1\ Scanning Method

The patient lies supine or on the left lateral position. The scanner is put to the area of the left sternal edge and palpable apex of the heart with the sector tilting inferiorly on the base of the apical four-chamber view.

2.15.2\ Section Structure

The structures imaged are the right ventricle, right atrium, left ventricle, left atrium, and coronary sinus (in long axis).

2.15.3\ Measuring Method and Normal Value

The width of coronary sinus is 3–10 mm.

2.15.4\ The Clinical Application

Both of the coronary sinusal width and the coronary sinusal wall’s continuity as well as the activity of interventricular septum should be focused in this view.

6  Echocardiography

91

 

 

2.16\ Long-Axis View oftheLeft Ventricular by the Right Anterior-Oblique Position

a1

a2

LV

RV

Ao

LA

b1

b2

LV

RV

Ao

LA

Fig. 6.20  Long-axis view of the left ventricular by right anterior-oblique position. (a) Diastole. (b) Systole

2.16.1\ Scanning Method

The patient lies supine or on the left lateral position. The scanner is put in the area of left sternal edge and palpable apex of the heart. The view can be obtained by rotating the sector anticlockwise about 70–90° towards the left shoulder from the apical four-chamber view.

2.16.2\ Section Structure

The main structures imaged are the right ventricle, left ventricle, left atrium, aortic valve, and mitral valve.

2.16.3\ Measuring Method and Normal Value

The anteroposterior diameter of aortic valve annulus is 18 ± 5 mm.

2.16.4\ The Clinical Application

Focuses in this view should be put on the following items: widths of aortic valve annulus and left ventricular outflow tract, continuity between aortic anterior wall and interventricular septum, thickness and motion of interventricular septum and left ventricular posterior wall, and echoness and activity of aortic valve and of mitral valve as well as of posterior mitral valve annulus.

92

S. He

 

 

2.17\ Long-Axis View oftheLeft Ventricular Apex by Parasternal

a1

b

a2

RV

LV

MV

Fig. 6.21  Long-axis view of the left ventricular apex by parasternal. (a) Diastole. (b) M-mode

2.17.1\ Scanning Method

The patient lies supine or on the left lateral position. The probe is placed at the left parasternal edge (third to fourth intercostal space) with the plane titling towards the apex on the base of parasternal left ventricular long-axis view.

2.17.2\ Section Structure

The structures shown are the left ventricle, right ventricle, interventricular septal apical segment, mitral valve, and left ventricular posterior wall.

2.17.3\ The Clinical Application

Thickness and wall motion of the apical segment and left ventricle and thrombus in the apical chamber are the items to be known in this view.