CT SCAN,CTA AND MRI AT NEUROHOSPITAL,BIRATNAGAR

Dr. Roshan KoiralaMBBS,MD

TOSHIBA –ACTIVION 16

Recent changes-----

• Toshiba 16 slice scanning system: Fast advanced technique with 3 steps

• Ready-Set-Go…………….• 1.ready-select the scan region• 2.Set- perform scan planning• 3.Go- start scanning

Performance-

• General CT scan-Head neck abdomen chest• Bone –e.g.. spine leg- 3D reconstruction• CTA-Brain ,periphery• Virtual bronchoscopy• Virtual colonoscopy• Endoscopic view of the arteries• CT-IVU• CT-diffusion imaging-CVA cases(Infarction)

Advantages of CT scan-

• Comprehensiveness- record images of bones, soft tissues and vessels at the same time.

• Speed-Faster than MRI-trauma cases,children• Cheaper than MRI• Bony structures and calcifications seen better.• Easy availability than MRI

CT ANGIOGRAPHY

• Minimally invasive medical test to produce pictures of blood vessels throughout the body.

• CTA-Examination of blood vessels in- Brain Abdomen-kidneys, liver Pelvis Lung, heart and neck

Uses of CTA

• Aneurysms• Atherosclerosis• A-V malformation• Prepare for renal transplant-renal artery CTA• Stent implant evaluation• Traumatic injury to vesssels in neck ,abdomen

and limbs• Aortic dissection

• Coronary artery aniography• Pulmonary artery embolism• Mapping of vasculatures in vascular brain

tumors