TY - JOUR T1 - Optimal Scintigraphic Evaluation of a Hydronephrotic Horseshoe Kidney JF - Journal of Nuclear Medicine Technology JO - J. Nucl. Med. Technol. SP - 255 LP - 258 DO - 10.2967/jnmt.106.034462 VL - 35 IS - 4 AU - Mark L. Lessne AU - Nirav P. Shah AU - James F. Stinchon AU - Mary E. Cross AU - M. Elizabeth Oates Y1 - 2007/12/01 UR - http://tech.snmjournals.org/content/35/4/255.abstract N2 - A 25-y-old man with horseshoe kidney was referred for diuretic-augmented renal scintigraphy. Single-detector dynamic posterior imaging was performed and revealed asymmetric retention of radiotracer in the left collecting system. Renal scintigraphy was repeated with a modified protocol. Dynamic imaging was performed this time using dual-detector acquisition of both anterior and posterior data. Thereafter, pregravity and subsequently postgravity static images were obtained in both anterior and posterior projections. This second study showed near-complete emptying of the left collecting system. This case illustrates the utility of using simultaneous anterior and posterior imaging and geometric mean calculations for functional analysis and also highlights the value of physiologic maneuvers to augment the traditional diuretic challenge. ER -