Six-year-old Gary could not stop throwing up after being hit on his head. To help detect possible damage or brain swelling, doctors took a detailed image of the boy's brain structures using a powerful, non-invasive technique that involves harmless magnetic fields. What instrument was used?
A)PET scanner
B)electroconvulsive therapy (ECT) instrument
C)transcranial magnetic stimulation (TMS)
D)MRI scanner

Question

Quizplus · Accepted Answer

The non-invasive technique that involves harmless magnetic fields is an MRI (Magnetic Resonance Imaging) scanner. PET scanner uses a radioactive tracer to create images, electroconvulsive therapy (ECT) instrument is used for electric shock treatment and transcranial magnetic stimulation (TMS) is used for therapeutic purposes. None of the three options involve magnetic fields. Therefore, the best choice is D, MRI scanner.

Six-Year-Old Gary Could Not Stop Throwing Up After Being Hit