Overview of prostate B-ultrasound

Prostate B-ultrasound is an imaging method that uses ultrasound technology to examine the prostate. It is mainly used to diagnose prostate hyperplasia, inflammation, tumors and other diseases. Check methods includeTransabdominal B-ultrasoundandTransrectal B-ultrasound, the latter has higher accuracy. The main content is divided into examination principles, indications, operating procedures and clinical significance. Among them, transrectal B-ultrasound is close to the prostate and can display the details of the lesions more clearly, making it an important method for prostate cancer screening.

Principles and types of prostate B-ultrasound

Prostate B-ultrasound uses the principle of ultrasonic reflection imaging to emit sound waves to the prostate through a probe and receive echoes to form an image. There are two types according to the placement position of the probe:Transabdominal B-ultrasound(The probe is placed in the lower abdomen, non-invasive but the image is blurry) andTransrectal B-ultrasound(The probe is inserted into the rectum, close to the prostate, and the image definition is high). The latter can detect small changes, such as early-stage prostate cancer, but requires cleaning the intestines in advance. Both have no radiation and are highly safe.

Indications and contraindications of prostate B-ultrasound

Prostate B-ultrasound is suitable forDifficulty urinating,Hematuria,PSA indicator abnormalityScreening for prostate cancer is of great value for patients with suspected prostate disease, especially for men over 50 years old. Contraindications include severe hemorrhoids or rectal stenosis (transrectal B-ultrasound is not suitable), but there are no absolute contraindications for transabdominal B-ultrasound. It is necessary to hold back urine (transabdominal) or empty the intestines (rectally) before the examination to ensure image quality.

Prostate B-ultrasound operating procedures and precautions

During the examination, the patient needs to lie on his side or supine, and the doctor applies coupling agent and then moves the probe to scan. Transrectal B-ultrasound requires local anesthesia and takes about 10-15 minutes. The results can show the size of the prostate, whether the echo is uniform, whether there are nodules, etc. If abnormalities are found, further diagnosis needs to be combined with PSA testing or needle biopsy. There are no special precautions after the examination, but transrectal B-ultrasound may cause temporary discomfort, and strenuous activities need to be avoided.

Clinical significance and summary of prostate B-ultrasound

Prostate B-ultrasound is used to diagnose prostate diseasesBasic means, can detect lesions early and guide treatment. Although cancer cannot be diagnosed 100% of the time, combining it with other tests can improve accuracy. It is recommended that high-risk groups be screened regularly, and attention should be paid to distinguishing the applicable scenarios of B-ultrasound, CT, and MRI. This technology is highly popular and can be carried out in most hospitals. The cost is about 200-500 yuan, which varies depending on the examination method and region.

Quote sources:1. "Guidelines for Diagnosis and Treatment of Urological Diseases in China" (edited by the Urology Branch of the Chinese Medical Association) 2. National Cancer Institute (NCI) Prostate Cancer Screening Guidelines 3. For device data, please refer to the public information on the official websites of each manufacturer.