Testicular Radionuclide Angiography and Static Imaging: Anatomy, Scintigraphic Interpretation, and Clinical Indications

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Abstract
Radionuclide testicular angiography and static imaging is an easy, rapidly performed study [in humans]. Its usefulness in separating acute testicular torsion from acute epididymitis was confirmed. Increased angiographic perfusion with definition of the testicular and deferential arteries in the spermatic cord and the pudendal artery posteriorly is equated with inflammation. Intense increased vascularity on the blood pool image is seen in abscess and acute inflammation, while cases of tumor and trauma have mild increases. Acute or missed testicular torsion, uncomplicated hydroceles and spermatoceles show absent vascularity. On the static images, decreased activity is characteristic of the shape and location of the avascular structure. Technical factors are stressed.

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