RADR 2401 Exam 2 obliques

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Last updated 11:10 PM on 4/19/26
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12 Terms

1
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RAO Sternum

15-20 degree oblique, RAO. Places sternum over heart shadow. Less obliquity is required for larger body habitus.

<p>15-20 degree oblique, RAO. Places sternum over heart shadow. Less obliquity is required for larger body habitus.</p>
2
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SC Joints - RAO/LAO

10-15 degree oblique. RAO shows right SC joint, LAO shows left SC joint. Joint of interest will be visible just lateral to the spine.

<p>10-15 degree oblique. RAO shows right SC joint, LAO shows left SC joint. Joint of interest will be visible just lateral to the spine.</p>
3
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Ribs bilateral obliques - AP

45 degree oblique, RPO/LPO. Side of interest is closest to IR - RPO shows right side elongated, LPO shows left side elongated.

4
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Ribs bilateral obliques - PA

45 degree oblique, RAO/LAO. Side of interest is away from IR - RAO shows left side elongated, LAO shows right side elongated.

Hints: PA = Away; AO = Away

5
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Ribs unilateral obliques

45 degree oblique. AP (RPO/LPO) will have side of interest closest to IR, PA (RAO/LAO) will have side of interest away from IR. Be sure to switch IR to lengthwise and that the spine is included.

6
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Esophagram - RAO

Prone, 35-40 degree RAO position. Right arm down by side, left arm up, head facing the side. Projects the esophagus between the spine and the heart shadow.

<p>Prone, 35-40 degree RAO position. Right arm down by side, left arm up, head facing the side. Projects the esophagus between the spine and the heart shadow.</p>
7
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UGI - RAO

Prone, 40-70 degree RAO. More angle for large body habitus, less angle for long/thin body habitus (40 - asthenic, 45-55 - sthenic, 70 - hypersthenic) Center lower for asthenic, higher for hypersthenic. Remember that the stomach is on the left side!

<p>Prone, 40-70 degree RAO. More angle for large body habitus, less angle for long/thin body habitus (40 - asthenic, 45-55 - sthenic, 70 - hypersthenic) Center lower for asthenic, higher for hypersthenic. Remember that the stomach is on the left side!</p>
8
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UGI - LPO

Supine, 30-60 degree LPO (larger body habitus = larger angle).

<p>Supine, 30-60 degree LPO (larger body habitus = larger angle).</p>
9
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BE - RAO/LPO

35-45 degree RAO or LPO, CR at iliac crest. Shows right colic flexure (hepatic flexure) and ascending colon.

<p>35-45 degree RAO or LPO, CR at iliac crest. Shows right colic flexure (hepatic flexure) and ascending colon.</p>
10
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BE - LAO/RPO

35-45 degree LAO or RPO, CR 1-2" above iliac crest. Shows left colic flexure (splenic flexure) and descending colon.

<p>35-45 degree LAO or RPO, CR 1-2" above iliac crest. Shows left colic flexure (splenic flexure) and descending colon.</p>
11
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BE - AP Axial Oblique

Tube angled 30-40 degrees cephalic. 30-40 degree LPO oblique. CR 2" inferior and 2" medial to right ASIS.

If done PA - angle tube caudal, RAO oblique.

<p>Tube angled 30-40 degrees cephalic. 30-40 degree LPO oblique. CR 2" inferior and 2" medial to right ASIS.</p><p>If done PA - angle tube caudal, RAO oblique.</p>
12
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IVU LPO/RPO

30 degree oblique. Upside kidney is seen in profile, downside ureter is free of superimposition from the spine.

LPO - right kidney in profile, left ureter seen

RPO - left kidney in profile, right ureter seen

<p>30 degree oblique. Upside kidney is seen in profile, downside ureter is free of superimposition from the spine.</p><p>LPO - right kidney in profile, left ureter seen</p><p>RPO - left kidney in profile, right ureter seen</p>