Infant X-ray Questions

Hello

1. What is the mean dosage (in mGy and/or DAP) for an AP Pelvis and/or Frog Leg Lateral a 9 month old at your hospital or institution? Do you have an acceptable dosage range (i.e. a maximum dosage that would be acceptable)?
2. Do the below x-ray parameters and dosage appear reasonable/acceptable for a 9 month old based on your experience?
3. Why do the parameters and dosages differ for the AP Pelvis x-rays (1.95 mAs) versus the Frog Leg Lateral (1.35 mAs) x-rays? Shouldn’t they be the same or similar?
4. For the 2 AP Pelvis x-ray, the x-ray machine reported the mAs as 1.97 and 1.95 . However, the figures report state 250 mA and 7 ms so shouldn’t the mAs be 1.75 (250 mA x 0.007 s)? – why is there a difference? What caused the increase? This is also noted with the frog leg lateral x-ray, the machine reports a mAs of 1.32 (but 250 mA x 0.005 s = 1.25 mAs).
5. What is the criteria at your hospital/institution for a radiation safety review / radiation investigation into an x-ray case (i.e. if there were multiple repeat of x-rays or if the radiation dosage given was significantly higher than anticipated etc.)?

Thank you for your help and expertise.

Xray 1: AP Pelvis:

0.166 mGy

0.376 dGy cm2

1.97 mAs

70.0 kVp

250 mA

7ms

Xray 2: Repeat AP Pelvis:

0.164 mGy

0.373dGy cm2

1.95 mAs

70.0 kVp

250 mA

7 ms

Xray 3: Frog Leg Lateral

0.111 mGy

0.252 dGy cm2

1.32 mAs

70.0 kVP

250 mA

5 ms

submitted by /u/Soccer_1998
[link] [comments]

source https://www.reddit.com/r/Radiology/comments/o9ade9/infant_xray_questions/