Yutaka Iwase

Computerized tomography in acute pyelonephritis: the clinical correlations.

Computerized tomography was performed on 19 patients diagnosed as having uncomplicated acute pyelonephritis. The relationship was investigated among the laboratory findings, presence of flank pain, clinical course and severity of the lesions detected by computerized tomography. In patients febrile for less than 2 weeks healing as assessed by computerized tomography took an average of 76 days. However, in patients with repeated febrile episodes occurring for longer than 2 weeks healing was delayed until an average 232 days after onset. Computerized tomography findings generally correlated well with the erythrocyte sedimentation rate, C-reactive protein level, and presence of pyuria and flank pain. However, in patients with a prolonged course computerized tomography proved to be a more reliable indicator of progress than either the results of laboratory tests or the symptoms. In conclusion, computerized tomography was useful in the diagnosis, assessment of severity and evaluation of healing of acute pyelonephritis.

Interstitial Laser Irradiation for Bladder Cancer

In recent years, the Nd:YAG laser has. been successfully applied in endoscopic urology for the bladder tumor (1)(2). All of the methods, however, are no-contact i. e. beam irradiation, there are limits in ability of laser surgery for bladder tumor. We have succeeded to develope a new contact laser probe, namely “Laser Endo Rod (ER)” for transurethral endoscopic laser surgery. (3)