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19 Cards in this Set
- Front
- Back
PA patella
For this position rotate anterior knee approx _________ degrees internally |
5 degrees internally
( or whatever is needed to bring interepicondylar line parellel to plane of IR) |
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PA patella
What is the technique and IR size for this projection? |
70 KVP
6 MAS 8x10 LW Tabletop or grid |
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Lateral Patella
What is the technique for this position? What IR size is acceptable for this position? |
70 KVP
4 MAS 10X12 TT LW 8X10 TT LW |
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Lateral Patella
1.) where should the CR be centered to for this projection? 2.) How much should you flex the knee for this position? |
1.) Cr centered to mid-patellofemoral joint space
2.) Only 5 to 10 degrees |
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Name the two BASIC PA axial intercondylar fossa (tunnel) positions?
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- Camp-Coventry method
- Holmblad method |
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1.) How many degrees should the patient lean forward for this projection
2.) What is the technique for this position? 3.)Where is the CR centered and whats the CR angle? |
1.) 20 to 30 degrees
2.) 70 KVP and 6-8 mAs 3.) No angle, CR perpendicular to IR CR centered to popliteal crease |
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inferosuperior projection Tangential
1.) How much flexion is placed on knees? 2.) Whats the technique used? 3.) Whats the CR position and angle? |
1.) 40 to 45 degrees
2.) 70 KVP 4 MAS 3.) CR Inferosuperiorly at a 10-15 º angle from lower legs, to be tangential to femoropatella joint |
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Hughston method
1.) How much is the knee flexed? 2.) What's the technique (All the same for tangential) 3.) Whats the CR angle and position. |
1.) knee is flexed 45 degrees
2.) 70 KVP 4 MAS 3.) CR is 15 to 20 degrees from lower leg to mid femoropatella joint space. |
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Name the three Tangential positions we need to know for lab.
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inferosuperior
hughston settegast |
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Which position is this?
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Hughston Method
( what it looks like when you use the collimator for leg support, don't forget to protect foot if collimator is hot) |
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Settegast (tangential)
1.) How much is the knee flexed? 2.) whats the technique (all the same for tangential) 3.) Whats the CR angle and position |
1.) 90 degree knee flex
2.) 70 KVP 4 MAS 3.) CR 15-20 degree from lower leg CR to femoropetella joint space |
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This patient is getting an AP knee x-ray. Their ASIS measurement is 20 cm. What angle will you place on the CR.
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none.... 19-24 cm is perpendicular to IR.
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1.) Where is the CR centered on the patient?
2.) Whats the technique for TT and bucky 3.) Is the IR LW or CW |
1.)CR is 1/2 inch distal to apex of patella
2.) 70 KVP 4-6 MAS TT 8 MAS grid 3.) LW with leg |
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Medial OBL knee
1.) what is the position of the leg, knee, ankle and foot in this projection. 2.) Where is the CR 3.) Whats the technique for TT and grid? |
1.) all rotated 45 degrees internally
2.) 1/2" distal to apex of patella 3.) 70 KVP 4-6 MAS TT 8 MAS grid |
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Lateral OBL knee
1.) What is the position of the knee, leg, ankle, and foot in this projection ? 2.) Whats the technique for TT and grid? 3.)Where is the CR |
1.) knee, leg, ankle, and foot all rotated 45 degrees laterally
2.) 70 KVP 4-6 MAS TT 8 MAS grid 3.) 1/2" distal to apex of patella |
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Lateral knee mediolateral
1.)describe the patient position / how much is knee flexed? 2.) What's the CR angle and position 3.)Whats the technique for TT and grid |
1.)Pt on affected side
Knee flexed about 20º. Unaffected leg and knee placed behind to prevent overrotattion 2.)Cr 5-7º cephalad Centered 1 inch distal to medial epicondlyle 3.) 70 KVP 6-8 MAS TT 10-12 MAS grid |
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PA axial Intercondylar fossa
Camp Coventry 1.) Whats the patient position and how much is the knee flexed? 2.) Whats the technique for this projection ? |
1.) Pt Prone, Knee flexed 40-50º from extension on table. Place support uner knee
2.) 70 KVP 6-8 MAS |
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Whats the technique we need to know for both the Camp Coventry method and Holmblad method. They are the same.
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70 KVP
6-8 MAS |
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For which two tangential projections is the patient prone?
For which tangential projection is the patient supine? |
Prone- hughston and settegast
Supine- inferosuperior |
