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Scenario

Scenario ID

Procedure

Adult RRL

Peds RRL

Appropriateness Category

Foot trauma, Ottawa rules negative, initial imaging

3079752

US foot

0 mSv
O

0 mSv [ped]
O

Usually not appropriate

Radiography foot

<0.1 mSv
☢

<0.03 mSv [ped]
☢

Usually not appropriate

MRI foot without and with IV contrast

0 mSv
O

0 mSv [ped]
O

Usually not appropriate

MRI foot without IV contrast

0 mSv
O

0 mSv [ped]
O

Usually not appropriate

CT foot with IV contrast

<0.1 mSv
☢

0.03-0.3 mSv [ped]
☢☢

Usually not appropriate

CT foot without and with IV contrast

<0.1 mSv
☢

0.03-0.3 mSv [ped]
☢☢

Usually not appropriate

CT foot without IV contrast

<0.1 mSv
☢

0.03-0.3 mSv [ped]
☢☢

Usually not appropriate

Scenario

Scenario ID

Procedure

Adult RRL

Peds RRL

Appropriateness Category

Foot trauma, Ottawa rules positive, initial imaging

3164907

Radiography foot

<0.1 mSv
☢

<0.03 mSv [ped]
☢

Usually appropriate

Radiography foot with weightbearing

<0.1 mSv
☢

<0.03 mSv [ped]
☢

Usually appropriate

US foot

0 mSv
O

0 mSv [ped]
O

Usually not appropriate

MRI foot without and with IV contrast

0 mSv
O

0 mSv [ped]
O

Usually not appropriate

MRI foot without IV contrast

0 mSv
O

0 mSv [ped]
O

Usually not appropriate

CT foot with IV contrast

<0.1 mSv
☢

0.03-0.3 mSv [ped]
☢☢

Usually not appropriate

CT foot without and with IV contrast

<0.1 mSv
☢

0.03-0.3 mSv [ped]
☢☢

Usually not appropriate

CT foot without IV contrast

<0.1 mSv
☢

0.03-0.3 mSv [ped]
☢☢

Usually not appropriate

Scenario

Scenario ID

Procedure

Adult RRL

Peds RRL

Appropriateness Category

Foot trauma, Ottawa rules not applicable, initial imaging

3079753

Radiography foot

<0.1 mSv
☢

<0.03 mSv [ped]
☢

Usually appropriate

CT foot without IV contrast

<0.1 mSv
☢

0.03-0.3 mSv [ped]
☢☢

May be appropriate

US foot

0 mSv
O

0 mSv [ped]
O

Usually not appropriate

MRI foot without and with IV contrast

0 mSv
O

0 mSv [ped]
O

Usually not appropriate

MRI foot without IV contrast

0 mSv
O

0 mSv [ped]
O

Usually not appropriate

CT foot with IV contrast

<0.1 mSv
☢

0.03-0.3 mSv [ped]
☢☢

Usually not appropriate

CT foot without and with IV contrast

<0.1 mSv
☢

0.03-0.3 mSv [ped]
☢☢

Usually not appropriate

Scenario

Scenario ID

Procedure

Adult RRL

Peds RRL

Appropriateness Category

Foot trauma, Ottawa rules negative, injury suspected in area not addressed by Ottawa, initial imaging

3079755

Radiography foot

<0.1 mSv
☢

<0.03 mSv [ped]
☢

Usually appropriate

Radiography foot with weightbearing

<0.1 mSv
☢

<0.03 mSv [ped]
☢

Usually appropriate

CT foot without IV contrast

<0.1 mSv
☢

0.03-0.3 mSv [ped]
☢☢

May be appropriate
(Disagreement)

US foot

0 mSv
O

0 mSv [ped]
O

Usually not appropriate

Fluoroscopy foot

<0.1 mSv
☢

<0.03 mSv [ped]
☢

Usually not appropriate

MRI foot without and with IV contrast

0 mSv
O

0 mSv [ped]
O

Usually not appropriate

MRI foot without IV contrast

0 mSv
O

0 mSv [ped]
O

Usually not appropriate

CT foot with IV contrast

<0.1 mSv
☢

0.03-0.3 mSv [ped]
☢☢

Usually not appropriate

CT foot without and with IV contrast

<0.1 mSv
☢

0.03-0.3 mSv [ped]
☢☢

Usually not appropriate

Scenario

Scenario ID

Procedure

Adult RRL

Peds RRL

Appropriateness Category

Foot trauma, dislocation suspected, radiography nondiagnostic, next imaging study

3180651

MRI foot without IV contrast

0 mSv
O

0 mSv [ped]
O

Usually appropriate

CT foot without IV contrast

<0.1 mSv
☢

0.03-0.3 mSv [ped]
☢☢

Usually appropriate

US foot

0 mSv
O

0 mSv [ped]
O

May be appropriate

MRI foot without and with IV contrast

0 mSv
O

0 mSv [ped]
O

Usually not appropriate

CT foot with IV contrast

<0.1 mSv
☢

0.03-0.3 mSv [ped]
☢☢

Usually not appropriate

CT foot without and with IV contrast

<0.1 mSv
☢

0.03-0.3 mSv [ped]
☢☢

Usually not appropriate

Foot trauma, tendon injury suspected, radiography nondiagnostic, next imaging study

3180649

MRI foot without IV contrast

0 mSv
O

0 mSv [ped]
O

Usually appropriate

CT foot without IV contrast

<0.1 mSv
☢

0.03-0.3 mSv [ped]
☢☢

Usually appropriate

US foot

0 mSv
O

0 mSv [ped]
O

May be appropriate

MRI foot without and with IV contrast

0 mSv
O

0 mSv [ped]
O

Usually not appropriate

CT foot with IV contrast

<0.1 mSv
☢

0.03-0.3 mSv [ped]
☢☢

Usually not appropriate

CT foot without and with IV contrast

<0.1 mSv
☢

0.03-0.3 mSv [ped]
☢☢

Usually not appropriate

Foot trauma, lisfranc injury suspected, radiography nondiagnostic, next imaging study

3180648

MRI foot without IV contrast

0 mSv
O

0 mSv [ped]
O

Usually appropriate

CT foot without IV contrast

<0.1 mSv
☢

0.03-0.3 mSv [ped]
☢☢

Usually appropriate

US foot

0 mSv
O

0 mSv [ped]
O

May be appropriate

MRI foot without and with IV contrast

0 mSv
O

0 mSv [ped]
O

Usually not appropriate

CT foot with IV contrast

<0.1 mSv
☢

0.03-0.3 mSv [ped]
☢☢

Usually not appropriate

CT foot without and with IV contrast

<0.1 mSv
☢

0.03-0.3 mSv [ped]
☢☢

Usually not appropriate

Foot trauma, occult fracture suspected, radiography nondiagnostic, next imaging study

3180650

MRI foot without IV contrast

0 mSv
O

0 mSv [ped]
O

Usually appropriate

CT foot without IV contrast

<0.1 mSv
☢

0.03-0.3 mSv [ped]
☢☢

Usually appropriate

US foot

0 mSv
O

0 mSv [ped]
O

May be appropriate

MRI foot without and with IV contrast

0 mSv
O

0 mSv [ped]
O

Usually not appropriate

CT foot with IV contrast

<0.1 mSv
☢

0.03-0.3 mSv [ped]
☢☢

Usually not appropriate

CT foot without and with IV contrast

<0.1 mSv
☢

0.03-0.3 mSv [ped]
☢☢

Usually not appropriate

Scenario

Scenario ID

Procedure

Adult RRL

Peds RRL

Appropriateness Category

Foot trauma penetrating, foreign body suspected, radiography negative, next imaging study

3097325

US foot

0 mSv
O

0 mSv [ped]
O

Usually appropriate

MRI foot without IV contrast

0 mSv
O

0 mSv [ped]
O

May be appropriate

CT foot without IV contrast

<0.1 mSv
☢

0.03-0.3 mSv [ped]
☢☢

May be appropriate

MRI foot without and with IV contrast

0 mSv
O

0 mSv [ped]
O

Usually not appropriate

CT foot with IV contrast

<0.1 mSv
☢

0.03-0.3 mSv [ped]
☢☢

Usually not appropriate

CT foot without and with IV contrast

<0.1 mSv
☢

0.03-0.3 mSv [ped]
☢☢

Usually not appropriate