The patients in whom a clinical diagnosis could not be made with certainty were investigated with raclopride PET or dopamine transporter single-photon emission computed tomography (SPECT), or both.

• 对于不能给予明确的临床诊断的病人进行雷氯必利PET或多巴胺转运蛋白单光子发射计算体层摄影(术)(SPECT)检查或者同时进行两者检查。