A basic introduction to imaging.
|
Lytic
|
Bone loss/destruction (blacker)
|
|
Blastic/Sclerotic
|
Bone production (whiter) - blotches
|
|
Artefact
|
Anything that obscures/distorts the image - patient clothing, image noise
|
|
Coalition
|
Congenital fusing of two bones
|
|
Disarticulation
|
Disconnection of limb from the body through the joint
|
|
Congruent
|
Joint that is not dislocated
|
|
Involucrum
|
Caused by osteomyelitis - thick shealth of periosteal new bone surrounding a sequestrum
|
|
Sequestrum
|
Calcification within a lucent lesion, separated from the surrounding bone
|
|
Monomelic
|
Condition that is confined to one limb
|
|
Monostatic
|
Condition that involves one bone
|
|
Polystotic
|
Condition that involves multiple bones
|
|
Agenesis
|
Failure of growth of an organ - congenital
|
|
Aplasia
|
Absence of development of a structure/organ
|
|
Gold Standard
|
Best test for the best diagnosis of a disease
|
|
Subclinical disease
|
Asymptomatic
|
|
Cloaca
|
Osteomyelitis - drainage hole
|
|
Strengths
|
Weaknesses
|
|
Relatively Inexpensive
|
No soft tissue details
|
|
Widely available
|
Cannot detect loss of bone mass unless severe (30-50%)
|
|
Bone pathologies - f#, tumour, arthritis, osteomyelitis, bone disease
|
Cannot detect bone marrow changes/oedema
|
|
Assess orthopaedic hardware
|
Ionising radiation
|
|
Strengths
|
Weaknesses
|
|
2D + 3D images
|
Uses ionising radiation
|
|
Complex fractures - especially of flat bones + spine
|
Cannot show bone marrow changes/oedema
|
|
Assess for fracture healing
|
|
|
Postop - degree of fusion/hardware complications
|
|
|
Strengths
|
Weaknesses
|
|
Excellent for soft tissues
|
Expensive
|
|
Bone Marrow/oedema
|
May require further imaging
|
|
Non-ionising radiation
|
Claustrophobic patients
|
|
Strengths
|
Weaknesses
|
|
Anatomic + Dynamic functional evaluation of MSK tissues
|
Operator dependant
|
|
Determines whether mass is Cystic/Solid nature
|
Superficial structures only
|
|
Vascularity of a lesion (Doppler)
|
|
|
Real time guidance for percutaneous procedures
|
|
|
Foreign body detection
|
|
No comments yet.
Cheatography n. The art of mapping complex subjects into clear, instantly navigable reference guides.
