Photo Researchers ftp March 2011

Color-enhanced sagittal (from the side) T1 weighted MRI of a 38 year old male, showing normal anatomy including the cerebral cortex, corpus calosum, t...

Black and white sagittal (from the side) T1 weighted MRI of a 38 year old male, showing normal anatomy including the cerebral cortex, corpus calosum,...

Color-enhanced axial (from the top) T1 weighted MRI of a 38 year old male, showing normal anatomy of the cerebral hemispheres and ventricles.

Color enhanced axial (from the top) T1 weighted MRI of a 38 year old male, showing normal anatomy of the cerebral hemispheres, eyes, eye muscles, sinu...

Color enhanced axial (from the top) T1 weighted MRI of a 38 year old male, showing normal anatomy of the cerebral hemispheres.

Color enhanced axial (from the top) T1 weighted MRI of a 38 year old male, showing normal anatomy of the cerebral hemispheres.

Color enhanced axial (from the top) T1 weighted MRI of a 38 year old male, showing normal anatomy of the cerebral hemispheres and ventricles.

Color enhanced axial (from the top) T1 weighted MRI of a 38 year old male, showing normal anatomy of the cerebral hemispheres, eyes, eye muscles, sinu...

Color enhanced axial (from the top) T1 weighted MRI of a 38 year old male, showing normal anatomy of the cerebral hemispheres.

Color enhanced axial (from the top) T1 weighted MRI of a 38 year old male, showing normal anatomy of the cerebral hemispheres, eyes, eye muscles, sinu...

Color enhanced axial (from the top) T1 weighted MRI of a 38 year old male, showing normal anatomy of the cerebral hemispheres and ventricles.

Color enhanced axial (from the top) T1 weighted MRI of a 38 year old male, showing normal anatomy of the cerebral hemispheres.

Black and white axial (from the top) T1 weighted MRI of a 38 year old male, showing normal anatomy of the cerebral hemispheres, eyes, eye muscles, sin...

Black and white axial (from the top) T1 weighted MRI of a 38 year old male, showing normal anatomy of the cerebral hemispheres.

Black and white (from the top) T1 weighted MRI of a 38 year old male, showing normal anatomy of the cerebral hemispheres and ventricles.

Black and white (from the top) T1 weighted MRI of a 38 year old male, showing normal anatomy of the cerebral hemispheres and ventricles.

Light micrograph of sickle cell anemia cells. Mag: 1000x. Nomarski interference.

Light micrograph of sickle cell anemia cells. Mag: 1000x. Nomarski interference.

Light micrograph of sickle cell anemia cells. Mag: 1000x. Nomarski interference.

Light micrograph of sickle cell anemia cells. Mag: 1000x. Nomarski interference.

Light micrograph of sickle cell anemia cells. Mag: 1000x. Nomarski interference.

Scanning electron micrograph (SEM) of lymphocytic leukemia or chronic lymphocytic leukemia (CLL). CLL is a type of leukemia that affects the B cells,...

Scanning electron micrograph (SEM) of lymphocytic leukemia or chronic lymphocytic leukemia (CLL). CLL is a type of leukemia that affects the B cells,...

Scanning electron micrograph (SEM) of lymphocytic leukemia or chronic lymphocytic leukemia (CLL). CLL is a type of leukemia that affects the B cells,...

Scanning electron micrograph (SEM) of lymphocytic leukemia or chronic lymphocytic leukemia (CLL). CLL is a type of leukemia that affects the B cells,...

Conceptual Illustration showing the electrical activity of the brain.

Illustration of a man and a pie chart with a missing piece representing Alzheimer's Disease.

Conceptual image of petri dish with E-coli bacteria and a map of Africa, Europe and Asia, illustrating the spread of disease.

Conceptual image of petri dish with E-coli bacteria and a map of Asia and Australia, illustrating the spread of disease.

Conceptual image of petri dish with E-coli bacteria and a map of North and South America, illustrating the spread of disease.

Color-enhanced x-ray of the knee of a 45-year-old man after surgery to repair a torn ACL (Anterior Cruciate Ligament).

Color-enhanced cerebral angiogram of an 80-year-old man, showing normal filling of the right carotid artery.

Angiogram of a 34-year-old male, showing a normal Circle of Willis, the arteries at the base of the brain that supply it with blood. It is named after...

Color-enhanced aortic angiogram in a 56-year-old woman, showing normal femoral artery filling to the legs.

Color-enhanced angiogram of a 68-year-old female with severe stenosis of her right external iliac artery.

Color-enhanced angiogram of a 65-year-old man, showing an area of stenosis in the common iliac artery prior to the placement of a stent shown in the a...

Color-enhanced angiogram of a 65-year-old man, showing an area of stenosis in the common iliac artery before and after the placement of a stent. For a...

Color-enhanced X-ray showing a fracture of the ankle in a 66-year-old man.

Color-enhanced X-ray showing a fracture and dislocation of the ankle in a 66-year-old man.

Color-enhanced X-ray of the ankle of a 26-year-old man showing screws and plates used to repair a fracture and dislocation of the ankle.

Color-enhanced X-ray of the ankle of a 26-year-old man showing screws and plates used to repair a fracture and dislocation of the ankle.

Color-enhanced X-ray of the ankle of a 47-year-old man showing screws and plates used to repair a fracture and dislocation of the ankle.

Color-enhanced X-ray showing ankle fusion (in which injured ankle joints are removed and the bones locked together with screws and plates) in a 79-yea...

Color-enhanced X-ray of a 51-year-old man who had an aorto-iliac wire-mesh bypass graft for atherosclerotic artery disease.

Color-enhanced X-ray of a 51-year-old man who had an aorto-iliac wire-mesh bypass graft for atherosclerotic artery disease.

Color-enhanced X-ray showing a wire-mesh aorto-iliac bypass graft surgically implanted for the treatment of atherosclerotic vascular disease.

Color-enhanced X-ray showing a wire-mesh aorto-iliac bypass graft surgically implanted for the treatment of atherosclerotic vascular disease.

Color-enhanced X-ray showing severe degenerative arthritis in the hand of 55-year-old woman.

Color-enhanced X-ray showing severe degenerative arthritis in the hand of 55-year-old woman.

Color-enhanced barium contrast abdominal X-ray in a healthy 73-year-old woman.