RADD 2711 Lecture 3 Summer 2011

RADD 2711 Lecture 3 Summer 2011 - GUIDELINES FOR TAKING...

Info iconThis preview shows pages 1–27. Sign up to view the full content.

View Full Document Right Arrow Icon
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
GUIDELINES FOR TAKING X- RAYS – Probable indicators trauma, unexplained weight loss, night pain… Possible indicators – > 50yoa, drug or alcohol abuse, corticosteroid abuse… NON-indicators – patient education, routine screening, pre-employment status…
Background image of page 2
Imaging Modalities
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
CONVENTIONAL RADIOGRAPHY
Background image of page 4
PLAIN FILM RADIOGRAPHY HISTORY: 1895 – Wilhelm Conrad Roentgen discovered “x-rays” 1901 – First Nobel prize in physics
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
PLAIN FILM RADIOGRAPHY Most frequent imaging modality to evaluate skeletal system 5 radiographic densities – air, fat, water, bone, metal Consider radiation safety Chronological comparison
Background image of page 6
PLAIN FILM RADIOGRAPHY Limited diagnostic sensitivity… 30 – 50% loss of bone density
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
PLAIN FILM RADIOGRAPHY ADVANTAGES: Readily available Relatively inexpensive Non-invasive
Background image of page 8
PLAIN FILM RADIOGRAPHY DISADVANTAGES: Lack of soft tissue discrimination Decreased sensitivity in detecting osseous lesions Technical artifacts Ionizing radiation
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
CONVENTIONAL TOMOGRAPHY
Background image of page 10
CONVENTIONAL TOMOGRAPHY Visualize a selected anatomical layer Blurs out structures above and below Take sequential films
Background image of page 11

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
CONVENTIONAL TOMOGRAPHY ADVANTAGES: Eliminate overlying structures DISADVANTAGES: High dose radiation because : multiple exposures required Long exposure time…patient motion
Background image of page 12
Background image of page 13

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
TOMOGRAM
Background image of page 14
TOMOGRAM
Background image of page 15

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
DEXA SCAN
Background image of page 16
DEXA scanner
Background image of page 17

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Dual energy X-ray absorptiometry (DEXA/DXA) 2 x-ray beams with different energies aimed at bone Evaluates bone density Quantitative DEXA SCAN
Background image of page 18
T score and Z score Score: > -1 = normal -1 to -2.5 = osteopenia < -2.5 = osteoporosis DEXA SCAN
Background image of page 19

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
CONTRAST STUDY
Background image of page 20
CONTRAST EXAMINATIONS Arthrography: water-soluble contrast MC joint visualized = knee now perform MRI ADVANTAGES: Readily available
Background image of page 21

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
CONTRAST EXAMINATIONS DISADVANTAGES: Invasive procedure Operator and interpreter dependent Only see structural surface May miss small lesions
Background image of page 22
Background image of page 23

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
MYELOGRAPHY Exam of spine and spinal cord Injection of contrast into the subarachnoid space MC at L2/3
Background image of page 24
MYELOGRAM
Background image of page 25

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
MYELOGRAPHY ADVANTAGES: Diagnose: Spinal stenosis Nerve root disease Disc disease
Background image of page 26
Image of page 27
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 11/23/2011 for the course RADD 2711 taught by Professor Melissaloschiavo during the Winter '11 term at Life Chiropractic College West.

Page1 / 91

RADD 2711 Lecture 3 Summer 2011 - GUIDELINES FOR TAKING...

This preview shows document pages 1 - 27. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online