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Table 2: Maximal skin dose of radiation (in mGy) and fluoroscopy time per procedure (in minutes), as a function of case type and date
Case Type Dates Mean Radiation Dose, Frontal Plane, mGy SD Radiation Dose Frontal Plane, mGy Mean Radiation Dose, Lateral Plane, mGy SD Radiation Dose, Lateral Plane, mGy Mean Radiation Dose, Total, mGy SD Radiation Dose, Total, mGy Fluoroscopy Time, Frontal Plane, min Fluoroscopy Time, Lateral Plane, min
All cases 9/06–6/10 319 289.6 201.2 279.2 520.2 498.9 26.7 22.2
7/10–6/12 215.6 211.5 112.4 186.9 328 350.1 17.9 12.6
Diagnostic angiograms All 164.9 161.1 74.6 69.5 239.4 217.5 11.2 6.2
9/06–6/10 185.7 212.7 88 86.8 273.7 284.9 10.9 6.4
7/10–6/12 150 109.1 65 52.2 215 148.6 11.4 6.1
Embolizations All 449.4 306 298.4 345 747.7 540.6 42.4 37.4
9/06–6/10 482.2 290.7 340.5 364.9 822.7 542.6 48.8 44.5
7/10–6/12 430.5 303.1 267.2 343.9 697.7 531.8 34.5 28.8
Note:—SD indicates standard deviation (inter-case variability).

Case Type	Dates	Mean Radiation Dose, Frontal Plane, mGy	SD Radiation Dose Frontal Plane, mGy	Mean Radiation Dose, Lateral Plane, mGy	SD Radiation Dose, Lateral Plane, mGy	Mean Radiation Dose, Total, mGy	SD Radiation Dose, Total, mGy	Fluoroscopy Time, Frontal Plane, min	Fluoroscopy Time, Lateral Plane, min
All cases	9/06–6/10	319	289.6	201.2	279.2	520.2	498.9	26.7	22.2
All cases	7/10–6/12	215.6	211.5	112.4	186.9	328	350.1	17.9	12.6
Diagnostic angiograms	All	164.9	161.1	74.6	69.5	239.4	217.5	11.2	6.2
	9/06–6/10	185.7	212.7	88	86.8	273.7	284.9	10.9	6.4
	7/10–6/12	150	109.1	65	52.2	215	148.6	11.4	6.1
Embolizations	All	449.4	306	298.4	345	747.7	540.6	42.4	37.4
	9/06–6/10	482.2	290.7	340.5	364.9	822.7	542.6	48.8	44.5
	7/10–6/12	430.5	303.1	267.2	343.9	697.7	531.8	34.5	28.8