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Wysłany: Czw 21:26, 31 Mar 2011
Temat postu: 200 cases of blunt trauma chest X ray and CT compa
200 cases of blunt trauma chest X ray and CT comparative analysis
Injury pneumothorax, hemothorax, pneumothorax often the blood off the complications of multiple ribs. The group of 108 cases of pneumothorax or blood pneumothorax. When the chest trauma, respiratory gases within the lung tissue by damaging the rupture into the pleural cavity. Formation of closed pneumothorax; exist between the two will form the blood pneumothorax. X ray CT can be detected is difficult to show a little gas, hemothorax. The performance of the anterior chest wall thin, narrow strips of tape or wire arc translucent liquid film; the different CT attenuation values of the organization. Can be inferred effusion and accumulation of blood. The group found that 5 cases of massive hemothorax, suggesting that early detection of CT scanning has significant advantages. 3.3 lung injury caused by a variety of reasons blunt chest trauma from the chest wall due to momentum transfer to the lungs. That significant changes in alveolar pressure, alveolar and interstitial vascular congestion, edema, expansion and even rupture, fluid and blood formed elements infiltrated into the lung interstitium and alveoli, causing varying degrees of pulmonary contusion [I], not with lung section,
tory burch reva
, leaves the same, had early, rapid absorption, but absorption and lesion size and range of lesion severity is not directly proportional. CT lung window shows: markings thickening, fuzzy, showing irregular patchy, nodular, focal or diffuse shadow, this group of 156 patients who absorbed the fastest 3d, the slowest in 3 weeks. Lung laceration, lung tissue tear, fracture of alveolar and small airway by the escape of the gas accumulated in the lung parenchyma, which formed thin-walled cyst (pseudocyst), when the cavity filled with blood, the shape of the tumor. Is the hematoma. CT said: Class round, sharp edges, and its even or uneven in density. Distinguish between the two is that the former mainly accumulated gas, no or a small amount of blood, the group of 22 cases, more performance for a gas cavity surface, rarely occur in isolation, and hematoma absorption time slowly, generally about 18 to 18 weeks. Cyst about 5 to 6 weeks, the group l patients 10 months after the hematoma was dissipated. 3.4 The performance of traumatic wet lung CT and lung injury in light are similar, heavier CT lung window shows: the side of the lung field or large chest trauma leaves wet lung is the premise of the pathological changes occurred, were frosted like glass-like changes; generally no hemoptysis, dissipate quickly, leaving no trace. The distribution of lesions in 32 cases related with the injured area, contralateral common, do not follow the lobe or segment range of distribution, absorption as early as 48h, the latest to 28h, an average of 10d. More than 3.5 atelectasis due to tracheal and bronchial mucosa contusion, fracture, pain stimulation. Oppression caused by traumatic section, leaves and even the side of atelectasis, occurs in more severe trauma, this group of 9 cases, 1 case CT showed left main bronchial rupture, lung field consolidation was high density. Pneumothorax complicated by blood, after agreement by the trachea, drainage cure. 3.6 diaphragmatic injury early diagnosis of traumatic diaphragmatic hernia is difficult, particularly in the abdomen and lower chest blunt trauma induced diaphragmatic rupture, early no specific symptoms, with intra-abdominal organs into the chest to appear hold your breath. Dyspnea [】]. Rupture of the diaphragm in 12 cases, 7 showed more than a visceral hernia gap, left more than right (liver buffer), and displays associated with lung injury; the other 5 cases with abdominal organ injuries after abdominal exploratory findings. Cracks are easy to missed diaphragmatic injury, a high risk. John et al [2 CT diagnosis of diaphragmatic rupture that have high specificity, can be found 2 / 3 of the traumatic rupture, alveolar swelling due to trauma, tracheal or esophageal rupture due to gas into the mediastinum; mediastinal hematoma is produced vascular injury resulting in bleeding. Ordinary x-ray film for the mediastinum with the diagnosis of different diseases is very difficult, but the CT in addition to resolving these issues, but also found a small amount of mediastinal emphysema, hematoma, and pericardial effusion (50mm). Blunt chest trauma were more common for the mine hospital, most patients with severe symptoms, they can not move too much, to the ordinary X-rays cause certain difficulties. Through this group of 200 cases of retrospective analysis, we found that blunt chest trauma CT can improve the detection rate of lesions, but also to make up for lack of ordinary x-ray. 4
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