Ultrasound of the ureter

Ultrasound examination of ureteral lesions has the advantages of convenient, rapid, repeatable examination, etc., and has practical value for negative stones that are not developed by X-ray angiography. However, for patients with mild ureteral lesions or dysplasia, X-ray and X-ray angiography are superior to ultrasound. Basic Information Specialist classification: urinary examination classification: ultrasound Applicable gender: whether men and women apply fasting: not fasting Tips: Please cooperate with the doctor when checking. Normal value Under normal circumstances, the bilateral ureters do not increase. Clinical significance 1, ureteral stones. 2, ureteral trauma. 3, ureteral tumors. 4. Congenital dysplasia of the urinary system. 5, congenital giant ureter. High results may be diseases: congenital giant ureter, urethra stones precautions 1, primary ureteral tumor is generally small, ultrasound is difficult to display, should be preferred urography X-ray. Ultrasound is superior to X-rayography when the metastatic tumor is large. 2, the examination should be checked in the morning on an empty stomach to rule out intestinal gas interference. When necessary, fasting gas-producing foods the day before, taking laxatives, swelling tablets, etc. 3, a large amount of drinking water before the examination, appropriate filling of the bladder. If necessary, after taking water, take furosemide (furosemide) or intramuscular furosemide (furosemide) for 15 to 20 minutes. Inspection process Ultrasonography. 1. Fill in the application form: fill in the application form item by item, provide clinical data, master the indications for ultrasound examination, and put forward the inspection requirements. 2. Explain to the patient the necessity of the examination: explain the inspection process and obtain the consent and cooperation of the patient and the family. 3, the examination room should be quiet, clean, safe, and with dark curtains. 4. Start the instrument and adjust the resolution of the instrument to keep the image clear. 5. Identify the key points of ultrasound examination. 6, position Prone position: The kidney can be used for longitudinal section and cross-sectional examination through the back approach. Supine position: For patients with suspected ureteral and pelvic obstructive lesions, this position can be taken. 7, the conditional use of color ultrasound examination helps to distinguish between the expansion of the ureter and abdominal blood vessels, identification of stones (often appearing color flash artifacts) and observation of ureteral orifice urine injection phenomenon. Adults use 3 to 3, 5 MHz probes, with convex array probes best. Children use a 5MHz probe. 8, scanning methods and aspects: 1 The lateral position of the subject was examined in the lateral view of the ureter, and the renal pelvis of the renal pelvis or stagnant water was used as a marker to show the junction of the ureter and ureter. The ureter was displayed along the long axis. You can also take a supine position in the inferior vena cava or 1 ~ 2cm outside the abdominal aorta, longitudinally to find the dilated pelvic ureter, down the pelvic ureter. 2 The bladder is used as the acoustic window, and the ureteral bladder wall segment and the ureteral orifices on both sides are displayed in the bladder triangle. Follow up and retrograde to check the pelvic ureter. When conditions are met, color Doppler is used to identify the ureteral outlet and to observe and compare bilateral ureteral urination. 3 The subject was placed in the supine position, with the common iliac artery end and the external iliac artery as the marker for oblique tilt scan. After finding the ureter in front of the common iliac artery, adjust the probe direction to show the second stenosis of the ureter. If the filling of the bladder affects the examination, the ureteral pelvic segment and the bladder wall segment may be examined first, and the second stenosis may be examined after emptying the bladder. 4 The subject took the prone position and underwent a back scan to show the hydronephrosis. The ureteropelvic connection and the upper ureter were detected down to the ureter until it was affected by the sputum. This section is used as a supplement when the ureter is difficult to display through the abdomen and does not require routine scanning. Not suitable for the crowd Inappropriate people: Generally there are no people who are not suitable. Adverse reactions and risks Generally, this examination does not have too many adverse reactions and does not have much influence on the body.