Despite the many benefits of SPECT, there are clearly
some things that it cannot provide.

a SPECT scan cannot:

1.

Give a diagnosis in the absence of clinical information.

2.

Specify the date of a head injury, infection, or toxic exposure.

3.

Assess or evaluate IQ.

4.

Assess or evaluate guilt, innocence, motivation, or sanity of a criminal defendant.

5.

Guarantee a perfect diagnosis or a cure.