Projection Radiography

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fewer incident x-rayslower dosex-ray photonsstandard dosefewer incident x-rayslower dosehigher electronic gainsame screen thicknessincreased image noisefor comparisonthicker screensame electronic gainno increase in image noiseincreased conversion efficiencyincreased absorption efficiency36
dynamic range & post-processingEssential Physics of Medical Imaging©
Page 1 and 2: Projection RadiographyJohn M. Boone
Page 3 and 4: 100 cmTransmission Imaging:source o
Page 5 and 6: Object MagnificationDivergent beam
Page 7 and 8: Projection RadiographyRadiography C
Page 9 and 10: screen filmx-ray photonsintensifyin
Page 11 and 12: Essential Physics of Medical Imagin
Page 13 and 14: The H & D curveEssential Physics of
Page 15 and 16: The H & D curveEssential Physics of
Page 17 and 18: white, visible lightof intensity N
Page 19 and 20: computed radiography (CR) digital s
Page 21 and 22: A CR reader, which allowsup to 4 ca
Page 23 and 24: laser lightemitted lightEssential P
Page 25 and 26: CCD based digital systemst 1 t 2 t
Page 27 and 28: 4k x 4k CCDCsI screenmirrorF/0.95 l
Page 29 and 30: “CR” versus “DR”computed ra
Page 31 and 32: Essential Physics of Medical Imagin
Page 33 and 34: Read out schema for TFT flat panel
Page 35: Direct flat panel x-ray detectors (
Page 39 and 40: digital subtraction angiography (DS
Page 41 and 42: digital subtraction angiography (DS
Page 43 and 44: dual energy radiographic imagingiod
Page 45 and 46: acquiredimageshigh kV imagelow kV i
Page 47 and 48: ody tomosynthesis47
Page 49 and 50: startendcontrast of focal plane obj
Page 51 and 52: commercial breast tomosynthesis sys
Page 53 and 54: scatter to primary ratioSPscatter f
Page 55 and 56: the anti-scatter grid55
Page 57 and 58: scatter reduction: the air gap meth
Page 59: Projection RadiographyRadiography C

Projection Radiography

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