Intravenous urography

Intravenous urography (IVP) is an examination method for imaging the kidney, ureter and bladder by intravenous injection of contrast medium. It is a commonly used examination method for urology and gynecology. It is characterized by low pain and high diagnostic efficiency. In particular, it has an authoritative diagnostic purpose for urinary calculi and urinary excretion. The main value is not to diagnose the stones, but to understand the influence of stones on the kidney function of the patients, to find the kidney anatomical abnormalities that are prone to stones and affect stone treatment, and to determine the relative position of stones in the urine. Basic Information Specialist classification: urinary examination classification: X-ray Applicable gender: whether men and women apply fasting: not fasting Tips: Check the fasting water for breakfast on the day, and prepare the intestines for the urinary tract. Normal value After intravenous injection, the organic iodine solution is almost completely filtered through the glomerulus and enters the renal tubules. Finally, it is discharged into the renal pelvis and renal pelvis to develop it. It can not only display the anatomy of the renal pelvis, renal pelvis and ureter and bladder cavity. And you can understand the excretory function of the two kidneys. Clinical significance Intravenous urography is a type of "excretory urography". It is an important method for displaying the renal pelvis and renal pelvis system, ureter and bladder. It not only provides us with the morphology of the above parts, the distribution of stones in the urinary tract, but also provides us with the secretory function of the kidney. information. The main value is not to diagnose the stones, but to understand the influence of stones on the kidney function of the patients, to find the kidney anatomical abnormalities that are prone to stones and affect stone treatment, and to determine the relative position of stones in the urine. Abnormal results: (1) urinary tract obstruction angiography is pyelonephritis or pelvic ureteral hydrops. (2) Infectious diseases: Kidney tuberculosis can be characterized by destructive lesions of cheese. In the early stage of tuberculosis, the angiography showed that the tip of the small sputum was eroded, the edges were not neatly squirrel-shaped, and one or more groups of edges were connected with the sputum. Accumulation, the edge of the renal pelvis and renal pelvis is irregular and irregular stenosis; the development of the lesion, the renal parenchyma and the renal pelvis and renal pelvis are extensively destroyed, often not developed, or faintly visible pyelonephritis and renal pelvis merge with the parenchyma of the renal parenchyma Difficult to distinguish. (3) Renal tumors and tumor-like lesions The renal parenchyma tumors showed a local enlargement of the renal shadow, narrowing, deformation, separation and displacement of the renal pelvis and renal pelvis. Malignant tumors also show that the renal pelvis and renal pelvis become stiff and the edges are not neat. Renal pelvic tumors mainly showed irregular filling defects, and the renal pelvis and renal pelvis were more lightly displaced, and the renal shape did not change significantly. Kidney cysts, the tendons of the renal pelvis are mostly curved, the border is sharp, and the apex of the renal pelvis is intact without erosion. Polycystic kidney and kidney shadows are often significantly increased, the renal pelvis is generally separated and elongated, with multiple curved edges with smooth edges; the impression is often multifaceted, and mostly bilateral. Precautions Forbidden before the examination: Check the fasting water for breakfast on the day, and prepare the intestine for the same urinary tract. Inappropriate population: patients with contrast allergies, moderate to severe renal insufficiency. Multiple myeloma patients, diabetic patients and renal dysfunction. Requirements for examination: According to the patient's condition and the needs of the doctor, choose different contrast agent dosage (single dose, double dose or large dose), different administration methods (vein slow drip and rapid injection) and different radiography intervals (regular photo) Film and delayed film) and so on. Inspection process 1. Before the examination, it is necessary to know in detail the patient's general condition, allergic history and kidney function. 2, before the injection of contrast media must be urinary tract plain film examination, excretory urography examination according to the patient's condition and the needs of the doctor to choose different contrast agent dosage (single dose, double dose or large dose), different methods of administration (vein slow Speed ​​drop and quick injection) and different film intervals (regular and delayed). Not suitable for the crowd Contrained population: patients with contrast allergies, moderate to severe renal insufficiency. Multiple myeloma patients, diabetic patients and renal dysfunction. Adverse reactions and risks Nothing.