Ct basics 2

Neuroradiology Dr. Grant J. Linnell Fellow Montreal Neurological Hospital McGill University

CT Basics ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Neuroradiologist ,[object Object]

Neuroradiology ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Neuroradiology ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

CT Basics ,[object Object],[object Object]

CT History SIR GODFREY N. HOUNSFIELD ,[object Object]

CT History ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

CT History ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

CT Protocolling ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

CT Protocolling ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

CT Protocolling ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

CT Protocolling ,[object Object],[object Object],[object Object],[object Object]

CT Terminology ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

CT Terminology ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

CT Terminology ,[object Object],[object Object],[object Object],[object Object]

CT Terminology ,[object Object],[object Object],[object Object],[object Object],[object Object]

CT Terminology ,[object Object],[object Object],[object Object]

Contrast ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Contrast ,[object Object],[object Object],[object Object],[object Object],[object Object]

Contrast ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Contrast ,[object Object],[object Object],[object Object],[object Object],Amin MM, et al. Ionic and nonionic contrast media: Current status and controversies. Appl Radiol 1993; 22: 41-54.

Contrast ,[object Object],[object Object],[object Object],[object Object]

Contrast ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Contrast ,[object Object],[object Object],[object Object],[object Object],Prevention of radiographic-contrast-agent-induced reductions in renal function by acetylcysteine. Tepel M, et al. N Engl J Med 2000 Jul 20;343(3):180-4

Contrast ,[object Object],[object Object],[object Object],Mehran, R. et al. Radiocontrast induced renal failure:Allocations and outcomes. Reviews in Cardiovascular Medicine Vol. 2 Supp. 1 2001

Radiation Safety ,[object Object],[object Object]

Radiation Safety ,[object Object],[object Object],[object Object],[object Object]

Radiation Safety ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Radiation Safety ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],-The equivalent of 200 CXR

Radiation Safety ,[object Object],[object Object],[object Object]

Radiation Safety ,[object Object],[object Object],[object Object],[object Object],[object Object]

Radiation Safety ,[object Object],[object Object],[object Object],[object Object],Per Hall, et al. Effect of low doses of ionising radiation in infancy on cognitive function in adulthood: Swedish population based cohort study BMJ, Jan 2004; 328: 19 - 0.

Radiation Safety ,[object Object],[object Object],William J Schull, Effects of Atomic Radiation: A Half-Century of Studies from Hiroshima and Nagasaki , 1995.

Radiation Safety Comparison of Image Quality Between Conventional and Low-Dose Nonenhanced Head CT Mark E. Mullins a , et al. AJNR April 2004. Reduction of mAs from 170 to 90

Radiation Safety ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Health Physics Society on the web--http://hps.org

Radiation Safety ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Conclusion ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Case 1 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Case 2 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Case 4 ,[object Object],[object Object]

Case 4 ,[object Object],[object Object],[object Object]

Case 5 ,[object Object],[object Object],[object Object],[object Object],[object Object]

Chronic Ischemic change = Encephalomalacia

Thrombolysis: ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Case 8 ,[object Object],[object Object],[object Object],[object Object]

Ct basics 2

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Ct basics 2