Understanding of cat's abdominal ray image, cats are healthy! For cats, the abdominal cavity is a huge area, which contains most of the body's systems and organs. Therefore, the examination of the abdominal cavity is not just palpation and auscultation. Radiation examination is conducive to better judging the disease and checking the development of the disease in an intuitive way.

1. Changes in volume

Changes in volume are mainly manifested in the increase or decrease of the volume of internal organs than normal. The causes of organ volume increase may be swelling, hyperplasia, and hypertrophy of tissues and organs, and tumors, cysts, hematoma, abscesses, emphysema or effusion in the organs. This will increase the lesion's organs than normal, sometimes several times larger, causing changes in the location or morphology of the tissues or organs adjacent to the lesion's organs. The size reduction may be caused by innate organ development or the organ atrophy due to the disease.

2. Changes in position The change in position indicates abnormal displacement of the internal organs. Except for the jejunum, the organs in the abdominal cavity have relatively fixed positions. Most of the causes of displacement are caused by lesional displacement in adjacent tissues and organs. For example, gastric posterior movement is often caused by liver enlargement or liver tumors or cysts. On the contrary, gastric anterior movement may be caused by liver atrophy, diaphragm rupture, or organs behind the stomach such as the spleen or pancreas.

3. Changes in morphological profiles

Changes in morphological profiles are manifested as deformation of internal organs. Any deformation beyond the physiological range of the leukogenic organs such as the stomach, intestine, bladder, and uterus, as well as parenchymal organs such as the liver, spleen, and kidneys is a sign of lesions. The types of deformation include changes in geometric shape, changes in surface shape and changes in mucosal morphology of cavity organs. For example, after liver enlargement, the posterior edge of the liver becomes blunt and round; when cirrhosis and liver tumors are irregular; when gastric ulcer is the appearance of niche shadows during barium feeding imaging; when bladder positive imaging is the bladder mucosa filling defect.

4. Changes in density

Changes in abdominal density are manifested as increased density or reduced density, which can be manifested as broad or localized density changes. Increased generalized density is common in abdominal effusion, peritonitis, and peritoneal tumors. X-rays show that there is a shadow of soft tissue with increased generalized density and unclear contour of the abdominal internal organs. Increased abdominal localized density is common in abdominal organ tumors or enlargement, and it is shown on X-rays as localized high-density soft tissue shadows. If calcification foci (calcification of the abdominal lymph node) and organ stones (gallstones, kidney stones or bladder stones) appear in the abdominal cavity, it will be reflected in the shadow of high-density foreign body. Low-density shadows on the abdomen can be seen in the stomach and intestines, causing pneumocytosis due to various reasons. It should be noted that under normal circumstances, some gas remains in the digestive tract to a greater or lesser extent, which also manifests as low-density shadows. In actual work, it should be identified from pathological shadows.

5. Precautions

1. During abdominal X-ray examination, multi-position shooting should be performed and the application of different imaging technologies should be carried out, otherwise there may be missed diagnosis. For example, if foreign objects in the stomach are highly transmissive, single-position shooting may be masked by foreign objects by food and gas in the stomach.

2. Pay attention to differentiation of different diseases, such as the identification of abdominal mass and ascites. The abdominal mass is a place-occupying X-ray image, while the ascites is a high-density homogeneous image, and the intestinal tract and other abdominal organs float in it.

3. Pay attention to the normal position of the abdominal nipple, it is easy to be misdiagnosed as ureteral stones.

4. Disorders in tissue and organ functionalities are difficult to show in plain X-rays. It is often necessary to use contrast techniques and ultrasound imaging to show certain details of the abdominal organs.