Clinical application ：

(1) vascular disease

Using 10MHz high frequency probe can be found in the blood vessels within less than 1mm of calcification, for carotid artery atherosclerotic occlusive disease has better diagnostic value, also using blood flow probe amplification of local judge the degree of luminal stenosis, embolus is shedding may, whether produced ulcer, prevention of cerebral thrombus plug.

Color Doppler ultrasound for all kinds of arteriovenous fistula can be described as the best diagnostic method, when the probe into the circular color spectrum can be diagnosed by color.

For vasculitis carotid body tumor, abdominal major vein aneurysm, vascular occlusion, chronic venous disease of the lower limbs (including lower limb vein varicose, the formation of primary lower extremity deep venous valve function, lower extremity deep venous reflux disorder, thrombophlebitis, venous thrombosis) using color Doppler ultrasound high-definition, local amplification and blood flow spectrum detection can make a correct diagnosis.

(2) abdominal organs

Mainly used in liver and kidney, but for the differential diagnosis of benign and malignant lesions of the abdominal cavity, gallbladder carcinoma with large polyps, chronic severe inflammation, bile duct, hepatic artery and other diseases have a certain diagnostic value.

For liver cirrhosis, color Doppler ultrasound can be obtained from the size of various blood vessel lumen, flow velocity, direction and the establishment of collateral circulation. For black and white, the difficult to distinguish between the nodular sclerosis, diffuse liver cancer, can be conducive to high frequency exploration, blood flow spectrum exploration to make differential diagnosis.

For the differential diagnosis of benign and malignant lesions of the liver, the differential diagnosis value of the cyst and the different kinds of tumors is better than the best.

Color Doppler ultrasound used in the kidney is mainly used for renal vascular diseases, such as the renal arteriovenous fistula, when the clinical manifestations of the interval, painless hematuria can not find the cause of the disease has a strong indication. For the common cause of secondary hypertension, renal artery stenosis, color Doppler ultrasound can be diagnosed clearly, when the blood flow velocity of the probe and stenosis is greater than 150cm/s, the diagnostic accuracy is 98.6%, and the sensitivity is 100%. On the other hand, the differential diagnosis of renal cell carcinoma, renal pelvis transitional carcinoma and benign tumor.

(3) small organs

In the small organ. Color Doppler ultrasound compared with black and white super significantly the accuracy of fault diagnosis is mainly in the thyroid, breast, eye, from a 10 MHz probe is not the color Doppler flow have been compared with ordinary black-and-white super 5MHz, clear probe for many, of thyroid disease mainly according to the thyroid gland blood supply of the diagnosis and differential diagnosis, which hyperthyroidism image most typical, with specificity, as a "Inferno". The simple goiter was not significantly changed compared with the normal thyroid blood flow. Subacute thyroiditis and bridge of Hashimoto between them, take the difference, and by nodules and peripheral blood flow and good nodules goiter, thyroid adenoma and thyroid carcinoma, it is recommended that the diagnosis of thyroid is not clear, patients have a certain economic capacity to do color Doppler ultrasound in order to confirm the diagnosis.

Color color Doppler ultrasound is mainly used for the differential diagnosis of breast cancer and breast cancer, and the eye is the best diagnostic value of the vascular disease.

(4) prostate and seminal vesicle

It is precisely because of the rectal exploration for the best way to diagnose the prostate, therefore, in this special. This method to explore the prostate cent transitional zone, the central zone, peripheral zone, another part of the prostate fiber muscle matrix area. The transitional zone consists of 100% benign prostatic hyperplasia, and the normal human migration area is 5% of the size of the prostate. Central ejaculatory duct around the tip wall pointing verumontanum, surrounding area include the posterior portion of the prostate, on both sides of the tip, as the birthplace of cancer in the 70-80%, and tip coated book or even disappear, forming anatomical weak areas and is common in cancer metastasis channel, as the key areas of prostate biopsy. It is a good diagnostic value for all kinds of prostate gland disease. When combined with prostate biopsy, prostate cancer can be diagnosed clearly, and prostate disease, especially prostate cancer in our country, the incidence of prostate cancer in Europe and America.

(5) obstetrics and Gynecology