[Pleural effusion and azygos lobe (author's transl)].
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Adult↗
Biomedical subjects
K F Neufang
Publications and source records attributed to K F Neufang.
[The roentgen diagnosis of ureterocele-with special reference to the simple orthotopic ureterocele in adults (author's transl)].
The ureterocele is a cystic ballooning of the terminal ureter into the bladder resulting from a congenital weakness of the wall of the lower ureter and a facultative concomitant stenosis of the ureteral orifice. This condition is more frequent in females. The cobra head with its surrounding halo is the most common finding on the excretory urogram in the simple adult ureterocele. In ectopic ureterocele which is principally encountered in children, the ureter terminates either at the bladder neck or in the proximal urethra. The urogram shows filling defect in the bladder which may extend into the female urethra. Ureteral duplication, dilatation of the upper urinary tract, vesico-ureteral reflux, chronic infection and ureteral stones are the most frequent additional findings and complications.
Female↗
[Diagnostiv value of pleuro-mediastinal lines and stripes for the radiologic analysis of the mediastinum (part I) (author's transl)].
Conventional x-ray examination of the chest (standard biplane radiograms, spot films, oesophagogram and tomogram) as a non-invasive method is of greatest value in the morphologic diagnosis of mediastinal disease. An important role plays the analysis of the pleuromediastinal lines and stripes which represent the interfaces of mediastinal structures and air containing lung tissue. A bried and systematic survey of their normal and pathologic roentgen anatomy is given and some characteristic examples are demonstrated.
Humans↗
[Diagnostic value of pleuro-mediastinal lines and stripes for the radiologic analysis of the mediastinum (Part II) (author's transl)].
Conventional x-ray examination of the chest (standard biplane radiograms, spot films, oesophagogram and tomogram) as a non-invasive method is of greatest value in the morphologic diagnosis of mediastinal disease. An important role plays the analysis of the pleuromediastinal lines and stripes which represent the interfaces of mediastinal structures and air containing lung tissue. A brief and systematic survey of their normal and pathologic roentgen anatomy is given and some characteristic examples are demonstrated.
Diagnosis, Differential↗
[The value of conventional chest radiography in the interpretation of pulmonary hemodynamics in mitral valve disease (author's transl)].
Standard biplane chest roentgenograms of 107 patients suffering from acquired mitral valve disease were independently interpreted by two radiologists. Fluoroscopy was performed for detection of mitral valve calcification. The effective pressures in the pulmonary vascular bed were not known at the time of the film reading. Using the most valuable roentgen signs (enlargement of the left atrium, valvular calcification, configuration of the right ventricular outflow tract, size of the central pulmonary arteries and degree of pulmonary interstitial edema), each case was graded from zero to nine points. The two readers widely agree in the classification of the roentgen findings in most cases. There is a strong positive correlation between the radiographic changes and the pulmonary artery mean pressure.
Evaluation Studies as Topic↗
[Criteria in plain radiograms for the diagnostic valuation of pulmonary hemodynamics in mitral valve disease (author's transl)].
Changes in the heart and lungs in patients with organic mitral valve disease, which can be demonstrated on plain radiographs, were correlated to pulmonary pressure. The most important radiologic criteria were: the extent of dilatation of the out flow tract of the right ventricle, enlargement of the left and the right pulmonary artery, the degree of interstitial pulmonary edema, enlargement of left atrium and calcification of mitral valve. With a point valuation of the criteria a prediction of pulmonary hypertension in mitral valve disease from plain radiographs is possible.
Germany, West↗
[Dysphagia as a symptom of a ventral cervical prolapsed disk].
Ventral osteophytes, which occur frequently, usually cause no symptoms. They are sometimes identified as the cause of dysphagia. Cervical disc prolapses which cause symptoms of dysphagia are far less common. This paper describes a patient with dysphagia in whom ventral cervical disc prolapse was finally diagnosed by MR tomography, after she had been through a "diagnostic odyssey". The result was subsequently confirmed at surgery. The relevant literature is also reviewed.
Cervical Vertebrae↗
Evaluation of adrenal masses in oncologic patients: dynamic contrast-enhanced MR vs CT.
The CT examinations, precontrast gradient echo MR images, and fast contrast enhanced dynamic MR studies were evaluated in 44 patients with 52 adrenal masses and known malignant disease of different origin. Morphologic features (size, shape, attenuation, contour, and enhancement) on CT scans, signal intensity on T2-weighted MR images, and patterns of enhancement on Gd-DTPA enhanced dynamic MR studies were analyzed in all patients. With dynamic contrast enhanced studies with prolonged imaging up to 15 min after Gd-DTPA, masses with moderate enhancement and complete washout after 10 min were considered as adenomas. Computed tomography and plain MR had a sensitivity of 0.71 and 0.96, a specificity of 0.75 and 0.88, and overall accuracy of 0.56 and 0.71, respectively. Simultaneous use of precontrast MR and dynamic contrast enhanced studies led to an accurate diagnosis in 88% (sensitivity = 1.0, specificity = 0.91) and thus should be considered in oncologic patients with undetermined adrenal masses.
Adenoma↗