[The jet phenomenon in the bladder (author's transl)]. / Beitrag zum Jet-Phänomen in der Harnblase.

The jet phenomenon seen during entry of urine into the bladder is illustrated by the urograms of a number of patients. Its diagnostic significance is discussed. Experimental models and theoretical considerations have shown that the jet is determined by the kinetic impulse; for a 1:10 mixture of contrastmedium and water, the jet is visible at all jet diameters and jet speeds at the orifice provided flow at the centre of the jet has fallen to about 0.073 m/s. Transferring these findings to man, and bearing in mind the functional and anatomical peculiarities and pressure differences between the lower ureter and the bladder, it becomes apparent that this phenomen can be produced under physiological conditions.

[An evaluation of the risks of pulmonary scintigraphy (author's transl)]. / Risikobetrachtung der Lungenszintigraphie.

Scintipulmography is a method for testing cardiopulmonary function in diagnosis and control. Standardized X-ray examinations are preferable from a radio-hygienic view. In perfusion scintigraphy microspheres are better for examining terminal vessels and are of lower risk. Short-lived radionuclides, e.g., 99mTc or 113mIn, should be used as markers. Recent physiologic findings indicate injection by bolus during the middle phase of inspiration while the patient holds his breath. General and individual risks and the diagnostic advantages of this method are discussed. Normally, the advantages outweigh the risks, as demonstrated in a case of artificial pulmonary embolism. For high-risk patients, however, inhalation scintigraphy should be made available as a standard radiologic method.

[Bone and joint changes due to compressed air in divers and Caisson workers (author's transl)]. / Knochen- und Gelenkveränderungen durch Druckluft bei Tauchern und Caisson-Arbeitern

The radiological and morphological changes of Caisson disease in the skeleton are well known. The findings of interest to radiologists are described. Because of its position, its was possible to review a large number of divers in Kiel; these have been under observation for years, and even decades. The development, manifestation and course of chronic skeletal changes due to compressed air are described to compressed air are described and, according to severity, are classified into types 1 to 4. Late changes are discussed in detail, since these are of importance in relation to compensation.

[Microlithiasis alveolaris pulmonum. (author's transl)]. / Microlithiasis alveolaris pulmonum

A report was made of a long term observation of microlethiasis alveolaris pulmonum in a female patient who died at the age of 53. The rare, etiologically unclear disease is after a long course , always fatal due to right heart failure. This case was unique in that small spotty pulmonary lesions were found radiologically. They presented, a pathognomonic, unmistakable picture for a differential diagnosis of silicosis.

[Development and utilization of the Nominal Standard Dose for the tolerance dosage to healthy tissue in radiotherapy]. / Die Entwicklun und Anwendung der Nominal Standard Dose für die Toleranzdosis des gesunden Gewebes in der Strahlentherpie

The utilization of the Ellis-formula for the determination of the tolerance of normal connective tissue is described. Beyond this, the formula is adapted to so-called critical organs. The individual suppositions implicated by the Ellis-formula are commented. Because of the verifyable congruency of the Ellis-formula with data obtained in clinical practice also by other authors, this conception is presented for the provisional determination of the limits of tolerance of normal tissue together with a computerized programme elaborated for use in different therapeutic techniques.