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

13  Normal Pregnancy

537

 

 

4.28.1\ Scanning Method

Probe is moved to observe the alignment of the vertebra (including the vertebral body and vertebral plates), in sagittal and transverse and coronary sections of the spine. Attention should be paid to the integrity of the back skin covering the spine.

4.28.2\ Section Structures

(1) In flanking median sagittal section, vertebral body and the unilateral vertebral arch are lined up as two rows of hyperechoic beaded bands in order, the long striped weak echoic region is the

spine canal, and the surface of the skin is intact (Fig. 13.40). (2) In transverse section, the three ossification centers composed of one vertebral body and two vertebral arches are shown as a triangular structure, with intact skin surface (Fig. 13.41) (3) In coronary section, bilateral vertebral arches are lined up in parallel as two rows of hyperechoic beaded bands, in the middle of which is the weak echoic spine canal (Fig. 13.42).

4.28.3\ Clinical Significance

Help to diagnose spina bifida, spinal meningocele, and other spine malformations

538

YQ. Zhou et al.

 

 

4.29\ Longitudinal Scanning of the

Fetal Femur, Humerus, and

Other Long Bones of Limbs

Fig. 13.43  Sagittal section and measurements of the femur and humerus are shown. FL femur, HL humerus

HL

FL

13  Normal Pregnancy

4.30\ Coronary Scanning

of the Fetal Forearms

Fig. 13.44  Coronary section of the fetal forearms. Bilateral ulnas, and radiuses are shown. L-H left hand, U ulna, R radius, R-H right hand

U

R

L-H

539

R

U

R-H

540

YQ. Zhou et al.

 

 

4.31\ Coronary Scanning

of the Fetal Feet

Fig. 13.45  Coronary section of the fetal feet. Bilateral plantas are shown. L-F left foot, R-F right foot

R-F

L-F

4.31.1\ Scanning Method

(1) Femur: Firstly, show the fetal long axis and spine, then rotate the probe to show the unilateral hip bone with the coccyx as a fulcrum at the sacrococcygeal region, and finally rotate the probe again to show the femur with the hip bone as a fulcrum. (2) Humerus: Firstly, show the fetal long axis and spine, then show the unilateral scapula by rotating the probe at the thoracic spine region, and finally rotate the probe again to show the humerus with the scapula as a fulcrum (Fig.

13.43). (3) Show the femur and humerus of the opposite side in the same way. (4) Show the long bones of other extremities in the same way, the key is to move and rotate the probe gradually, and find the structures in order according to the direction of knee joint, ankle joint, elbow joint, and wrist joint. The short long bones in the hands and feet shown as stubs (Fig. 13.44) are not included in routine ultrasound scanning, because they are not easily detected due to the influences of fetal lie and position of hands and feet.