IE homework hand to humerus

1, 2, and 3 only

A lateral forearm projection with accurate positioning demonstrates: 1. the distal scaphoid is slightly distal to the pisiform. 2. the ulnar styloid in profile. 3. an open elbow joint space. 4. the radial tuberosity in profile.

1 and 2 only

A lateral hand projection obtained with the hand in slight external rotation demonstrates the: 1. radius posterior to the ulna. 2. second metacarpal posterior to the other metacarpals. 3. pisiform posterior to the distal scaphoid

was obtained with the elbow in external rotation

A less than optimal AP elbow projection demonstrating the ulna without radial head superimposition

was obtained with the wrist internally rotated

A less than optimal lateral wrist projection demonstrating the distal scaphoid anterior to the pisiform

2 and 3 only

A properly positioned AP thumb projection will demonstrate which of the following? 1. Twice as much soft tissue is present on the side of the next to the fingers than the opposite side. 2. Phalanges are not foreshortened. 3. Medial palm soft tissue not superimposed over the proximal first MC and the CM joint. 4. Hand fully extended.

Which of the following projections is used to prevent the crossing of the forearm bones?

AP projection

radioulnar articulation as an open space

An optimal internally rotated AP oblique elbow projection will demonstrate all of the following except the: -trochlear notch and medial trochlea in profile -trochlea-coronoid process articulation as an open space -radial head and neck superimposing the ulna -radioulnar articulation as an open space

Yes

Does this image meet diagnostic evaluation criteria for a fanned lateral?

YES. Entire forearm, including proximal and distal joints on image, slight superimposition of the radial head, neck, and tuberosity over the proximal ulna, humeral epicondyles not elongated or foreshortened, and humeral epicondyles are parallel to IR

Does this image meet diagnostic evaluation criteria for an AP forearm?

NO! Digits are not separated and soft tissue is overlapping between the phalanges, 3rd, 4th and 5th MC bodies are superimposed. IP and MCP joint spaces are closed.

Does this image meet diagnostic evaluation criteria for an Oblique Hand?

Yes, minimal overlap of the 3rd to 5th MC bodies; digits separated slightly with no overlap of their soft tissues, anatomy from fingertips to distal radius and ulna included, IP and MCP joint spaces are open.

Does this image meet diagnostic evaluation criteria for an Oblique Hand?

Yes

Does this image meet diagnostic evaluation criteria?

Yes, it meets the required criteria for a diagnostic image (lateral humerus). Elbow and shoulder joints included; epicondyles perpendicular to IR, lesser tubercle in profile on medial aspect

Does this image meet diagnostic evaluation criteria? Think of this image - what is the position here and then think - does it pass inspection?

increase posterior rotation

Fanned lateral hand: which positioning maneuver(s) would best improve this image if repeated?

-Separate fingers -Open collimation lengthwise -Abduct the thumb -Increase posterior rotation

Fanned lateral: which positioning maneuver(s) would best improve this image if repeated? (Select all that apply)

Depress the proximal forearm

How should the PA wrist projection be performed in order to superimpose the anterior and posterior margins of the distal radius and obtain open radioscaphoid and radioulnar joint spaces?

supinate; parallel

To properly position an AP humerus, _____ the hand and wrist, and align the humeral condyles _____ with the IR

Parallel

What is the relationship between the humeral epicondyles and the IR for the exam this image?

Humeral epicondyles not parallel to IR due to slight external rotation

What positioning error occurred in this AP humerus image if any?

Distal joint medially rotated

What positioning error occurred in this image?

The arm was rotated medially (internally)

What positioning error(s) occurred in this AP Elbow image? (Select all that apply)

-Thumb not fully extended; IP closed -Palmar tissue not sufficiently moved out of superimposition

What positioning error(s) occurred in this AP Thumb image? (Select all that apply)

Part over-rotated

What positioning error(s) occurred in this image for an oblique wrist?

No positioning error was detected. Image is good

What positioning error(s) occurred in this lateral 1st digit image, if any?

Hand pronated; elbow not flexed 90 degrees

What positioning error(s) occurred in this lateral forearm image?

Supinated

When performing this accurately positioned image, what is the position of the patient's hand?

lateral and medial epicondyles, and greater tubercle

Which of the following are in profile on an optimally positioned AP humerus projection?

4 only

Which of the following is not true about an optimal lateral thumb projection? 1. Central ray is aligned parallel with the IP joint spaces. 2. The fingers and hand are flexed until the thumbnail is in profile. 3. Long axes of the thumb are aligned with the collimator light field. 4. Equal soft tissue width on each side of the phalanges.

Rotate hand into lateral position

Which positioning maneuver would best improve this image if repeated?

Distal radius and ulna not all included

Why does this fanned lateral not meet diagnostic evaluation criteria?

-Metacarpals superimposed over the proximal 1st MC -Thumb is over-rotated

identify the repeatable error(s) here

2 and 3 only

A PA wrist projection that is externally rotated would demonstrate: 1. superimposition of the laterally located carpal bones. 2. a closed radioulnar articulation. 3. open lateral carpal joint spaces. 4. the radial styloid in profile.

AP oblique, medial rotation

Identify the projection in this image.