Non - Invasive
Ultrasonography
Magnetic Resonance Imaging
Functional Magnetic Resonance Imaging
Computed Tomography Scan
Electrocardiogram
2D echo
X ray
EXTERNALLY
MRI scan
T2 weighted MRI scan
dark CSF
T1 weighted MRI
Bright CSF
contrast agents
barium
iodine
gadolinium
X RAY
angiography
hysterosalpingography
voiding cystourethrogram
CT scan
contrast enhanced
non contrast CT scan
sound waves
ultrasonography
2d echocardiography
doppler
arterial doppler
venous doppler
Positron emission Tomography
INTERNALLY
Ventilator