What We Should Expect from A Lateral Chest Radiograph

一共分析400例胸部正面及側面相。將400例分成三組。第一組為235例正常胸部相。此組用來評估側面相中某些正常構造之可見率。第二組為143例異常胸部相，包括肋膜積水〈20例〉，鄰接橫隔膜病變〈15例〉，肺膿瘍〈12例〉，肺氣腫〈20例〉，肺腫瘤〈15例〉，縱橫隔膜病變〈10例，〉，阻塞性肺氣不張〈16例〉，漫潤性病變〈15例〉，肺炎〈20例〉。此組用來評估側面相是否對異常正面相有所幫助。第三組為22例正面相沒顯示，但側面相顯示異常現象者。此組用來評估後氣管帶增厚，中間支氣管後壁增厚及左主支氣管後移在診斷某類疾病之可行性。評估結果為〈一〉右側面相及左側面相對本研究之某些正常構造之可見率沒有差別。235例正常側面相之某些正常之構造之見率為後企管帶〈97%〉，肺右上葉支氣管開口〈45%〉，肺左上葉支氣管開口〈83%〉，下腔靜脈〈70%〉，中間支氣管後壁〈92%〉，主動脈〈87%〉，右肺動脈〈97%〉，左肺動脈〈71%〉，胃氣〈69%〉，氣管氣桂〈99%〉。〈二〉除非胸部正面相不能作成確定診斷或希望對病變位置作定位，胸部側面只在鄰接橫隔膜病變、縱隔腔病變、肺門病變、肺中葉或舌葉病變、胸骨或胸骨後病變及胸椎病變為必要之檢查。〈三〉氣管後壁、中間支氣管後壁及肺左上葉支氣管開口之高可見率確認它們對於診斷某類疾病之可行性。

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並列摘要

We reviewed 400 cases whose P-A and lateral chest radiographs were used. These were divided into three groups. Group A was composed of 235 cases of normal radiographs. This group was used to evaluate the incidence of visibility of some anatomic structures on a lateral radiograph. Group B consisted of 143 cases with various diseases including pleural effusion (20 cases), peri-diaphragmatic lesions (15 cases), abscess (12 cases), emphysema (20 cases), lung tumor (15 cases), mediastinal tumor (10 cases), obstructive atelectasis (16 cases), infiltrative pattern (15 cases), and pneumonia (20 cases). This group was used to evaluate what information the lateral view could add to an abnormal chest P-A radiograph. Group C had 22 cases with additional findings on the lateral view which were not seen on the chest P-A radiographs. This group was used to evaluate the applicability of sings of thickening of the posterior tracheal band, thickening of the posterior wall of the bronchus intermedius and posterior displacement of the left main bronchus in the diagnosis of specific diseases. The results showed A) there was no difference in the incidence of visibility of anatomic structures evaluated in this study on the right and the left lateral view. The visible incidence of these structures in 235 cases was 97% for the posterior tracheal band, 45% for the right upper lobe bronchus orifice, 83% for the left upper lobe bronchus orifice, 70% for the inferior vena cava, 92% for the posterior wall of the bronchus intermedius, 87% for the aorta, 97% for the right pulmonary artery, 71% for the left pulmonary artery, 69% for stomach air and 99% for the tracheal air column. B) unless the diagnosis could not be reached on the chest P-A radiograph or localization of the lesion was expected, the lateral view should be ordered only for patients with lesions of the peridiaphragm, mediastinum, hilum, midline, middle or lingual lobe, sternum, retrosternum or spine. C) the high incidence of visibility of the posterior tracheal band, posterior wall of the application of these signs available for diagnosis of specific diseases.

並列關鍵字

lateral view ； posterior tracheal band ； bronchus intermedius

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What We Should Expect from A Lateral Chest Radiograph

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