Central Nervous Central Nervous SystemSystem

Sun Yat-sen Memorial Hosp.Sun Yat-sen Memorial Hosp.

NormalNormal

Normal Head CT: Brain Window

F, 62yr

Normal Head CT: Bone Window

Normal Head CT:

Brain Window (left) & Bone Window (right)

Normal Head MRI: T2WI

Normal Head MRI: T1WI

Normal Head MRI

T1WI T1WI +C

Normal Head MRI: T2-FLAIR

ANTERIOR

POSTERIOR

Normal Head MRI: T1WI +C

COR SAG

Normal Head MRA

TRA COR

SAG

Normal Head MRI of 1y/o Baby

T2WI T1WI

T1WI+C

T2-FLAIR

T1WI-SAG

InfarctionInfarction

F, 84y/o

Multiple old infarction on right parietal lobe, temporal lobe and occipital lobe

Atrophy of brain parenchyma

M, 75y/o

Acute infarction on right parietal lobe, temporal lobe and frontal lobe

M, 51y/o

Infarction of bilateral occipital lobe with hemorrhage

MRI of the same patient

T2WI

T1WI

T1WI+C

T2-FLAIR DWI

MRA of the same patient

Pre contrast

Post contrast

M, 55y/oMultiple infarction of left basal ganglia and corona radiata

MRI of the same patient

T2WI

T1WI

T1WI+C

T2-FLAIR

M ， 80 y/oAcute Infarction of right parietal and temporal lobe

T2WI

T1WI T2-FLAIR

MRA of the same patientSclerosis of cerebral artery and interruption of right middle cerebral artery

HemorrhageHemorrhage

M ， 63 y/o1 、 cerebral hemorrhage of right frontal and temporal lobe2 、 right subdural hemorrhage3 、 subarachnoid hemorrhage

F, 40 y/o1. Cerebral hemorrhage of left basal ganglia2. Subarachnoid hemorrhage

F, 56 y/oSubarachnoid hemorrhage

F, 78 y/oAcute Subdural hemorrhage on the left

MRI of the same patient 1 month later.Subacute subdural hemorrhage

T2WI

T1WI

T2-FLAIR

Acute Epidural hemorrhage

Acute Epidural hemorrhage

TraumaTrauma

F, 37y/o with trauma.CT:

•Brain window shows epidural hemorrhage and brain contusion of right temporal lobe;•Bone window shows fracture of left temporal bone.

M, 1y/o with trauma.

CT:

Brain window: normal

Bone window: right parietal bone fracture (obvious on coronary view)

M, 11y/o after trauma.

CT: Left temporal bone fracture with intracranial gas.

M, 52y/o with trauma.CT: Brain contusion of right frontal and temporal lobe with subdural effusion.Bone window: normal on these 2 slices but shows left temporal bone fracture on inferior slices.

M, 23y/o after traumaCT shows bilateral subdural hemorrhage, no fracture is found on bone window

M, 6 y/o after traumaCT shows epidural hemorrhage on the right, no fracture is found on bone window

F, 76 y/o after trauma CT shows brain contusion on right frontal lobe, hemorrhage at right frontal lobe and left parietal lobe with subdural hemorrhage on the right, no fracture is found on bone window

TumorsTumors

Astrocytoma—MRI

T2WI

T1WI+C

T1WI

FLAIR

M, 44y, Astrocytoma—MRI

T2WI

T1WI+C

T1WI T1WI+C

T2WI

T1WI+CFLAIR

T1WI

M, 40y, Astrocytoma—MRI

meningeoma—CT

平扫 +C

Meningeoma—MRI

T1WI

T1WI+CT2WI

T1WI+C

Meningeoma—CT 、 MRI

T1WI

T1WI+C

CT

T2WI

Meningeoma—MRI

T1WIT2WI T1WI+C

T1WI+CT1WI+CFLAIR

M ， 44y ， lung cancer brain metastasis--CT

M ， 65y ， lung cancer brain metastasis—MRI

T2WI

T1WI+C

T1WI

T1WI+C

M ， 61y ， NPC metastasis—MRI

T2WI

T1WI+C

T1WI

FLAIR

F, 50Y, acoustic nerve tumor—MRI

B-TFE

T1WI+C

T1WI

B-TFE

F, 38Y, acoustic nerve tumor—MRI

T1WIT2WI

T1WI+CT1WI+C