Phillip Fritzsche

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Pelvic MRI yields images with excellent anatomic resolution because of limited motion and large signal differences (contrast) between fat, muscle, and organs containing fluid or mucous. Although MRI is not appropriate in screening for pelvic malignancies and is unreliable for tumor detection, it does offer superior delineation of the extent of disease and(More)
Renal imaging has been enhanced by the introduction of ultrasound (US), computed tomography (CT), and magnetic resonance imaging (MRI). Each of these imaging modalities represents a unique contribution to detection and staging of renal cell carcinoma. MRI offers several advantages, specifically, determination of tumor origin, evaluation of vascular patency,(More)
Surface coil magnetic resonance (MR) imaging of the scrotum allows differentiation of the testis, epididymis, and spermatic cord. Intratesticular and extratesticular lesions are demarcated by the tunica albuginea. The sensitivity of MR is very high for detection of scrotal abnormalities but is non-specific since it is unable to distinguish primary(More)
Previous reports describing the diagnostic accuracy of transrectal sonography have not documented the specificity of differentiating abnormal internal echoes of the prostate. To determine the specificity of the examination, a prospective study was designed to correlate sonographic findings with histological diagnoses. Gray scale transrectal sonography was(More)
A technique is described using angiographic guide wires and catheters in combination with endoscopy. Obstruction of 9 ureters in 7 patients was managed successfully with this technique. The ureters in these cases were inaccessible otherwise because of unusual ureteral position or severity of obstruction. The method allows placement of angiographic guide(More)