detail The degree of sharpness in an objects borders in addition to structural details. How clear the object looks on the radiograph Recorded detail
Kessel, Dave, General Manager has reference to this Academic Journal, PHwiki organized this Journal Part II Image Quality Image Quality Image Quality Photographic Quality Geometric Quality Why you see what you see The films or images have different levels of density different shades of gray X-rays show different features of the body in various shades of gray. The gray is darkest in those areas that do not absorb X-rays well in addition to allow it to pass through The images are lighter in dense areas (like bones) that absorb more of the X-rays.
This Particular University is Related to this Particular Journal
Terminology Density, contrast Detail Distortion Image Sharpness spatial resolution Lp/mm Blur Motion SID OID Focal spot size Image receptor Magnification Penumbra Size distortion Shape distortion Focal Spot size Image quality Resolution, ability to distinguish shapes, ability to distinguish lines on image detail
RECORDED DETAIL The degree of sharpness in an objects borders in addition to structural details. How clear the object looks on the radiograph Recorded detail Image sharpness Spatial resolution Smallest separation of two lines or edges Measured by lp/mm RESOLUTION TEST TOOLS LINE PAIRS/ MM Depicts how well you can see the differences in structures More lines=more detail
Recorded Detail SID Focal spot size OID Image receptor type Motion Factors that affect detail
Focal Spot Geometry Angle of anode size Focal Spot Geometry Focal spot is not really a single point Dependent on filament size in addition to anode angle. SID Shine a flashlight on a 3-D object, shadow borders will appear fuzzy -On a radiograph called penumbra Penumbra (fuzziness) obscures true border Farther the flashlight from object = sharper borders. Same with radiography.
Recorded Detail: Penumbra in addition to SID Recorded Detail: Penumbra in addition to Focal Spot Size Recorded Detail: Penumbra in addition to OID
The position of the structure in the body will influence how magnified it will be seen on the image The farther away the more magnified Recorded Detail: OID in addition to Penumbra The closer the object to the film, the sharper the detail. OID , penumbra , sharpness OID , penumbra , sharpness Structures located deep in the body, radiographer must know how to position to get the object closest to the film. Recorded Detail: Image Receptor Type Film/Screen Imaging excellent spatial resolution-smallest detail that can be detected in an image Computed Radiography (cassettes) Digital Radiography (cassette-less) improved contrast resolution
Motion Can be voluntary or involuntary Best controlled by short exposure times Use of careful instructions to the patient Suspension of patient respiration Immobilization devices Blurring of image due to patient movement during exposure. Misrepresentation of size or shape of anatomic part; when part is distorted, detail is reduced distortion
Distortion An increase of decrease in the size of an object : magnification or reduction Three types: size, shape, placement of part in body Types of Distortion SID-size distortion OID-size distortion Beam Angulation-shape distortion Body Part-Beam alignment-shape distortion FACTOR INFLUENCING DISTORTION Distortion: SID
40 SID VS 72 SID Which one is which Distortion: OID
Elongation Foreshortened Normal
Kessel, Dave General Manager
Kessel, Dave is from United States and they belong to KVNA-FM and they are from Flagstaff, United States got related to this Particular Journal. and Kessel, Dave deal with the subjects like Entertainment; Music
Journal Ratings by Baker College of Owosso
This Particular Journal got reviewed and rated by Baker College of Owosso and short form of this particular Institution is US and gave this Journal an Excellent Rating.