JAMA. 1931;96(12):974. doi:10.1001/jama.1931.02720380062039.
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The work is divided into two parts, the first considering the subject in general and the second presenting numerous illustrations of intravenous pyelography in almost all disturbances of the kidney, including such rare lesions as echinococcus cyst. The initial portion of the monograph outlines the principles, technic and limitations of ascending pyelography based on 200 selected cases. It then describes the history of the development of descending pyelography, the early use of iodized urea and the peroral method of Ziegler and Köhler. Iopax is minutely described as to its history, chemical and physical properties, toxicity, antiseptic action, technic of administration, indications and contraindications, and tolerance. A chapter describes the methods of using intravenous pyelography by iopax for the evaluation of renal function. Finally, ascending and descending pyelography are compared, the advantages and indications for the two methods being thoroughly considered. Ravasini is enthusiastic over the results obtained by the intravenous


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