A web-based CT dose calculator

Procedure of dose calculation in WAZA-ARI system

1. Measure CT source of each model

   WAZA-ARI development group measured CT source of each model.
   

2. Make CT Source data for calculation

   WAZA-ARI development group make CT source data for Monte Carlo calculation.
   

3. Calculate organ dose

   WAZA-ARI development group calculated organ dose of CT slices using Monte Carlo code PHITS and voxel phantoms.

4. Implement database in WAZA-ARI system

   WAZA-ARI development group implemented organ dose database of CT models in WAZA-ARI system.

5. Calculate organ dose at exposure condition

   User inputs exposure condition (model, tube voltage, tube current, beam width, scan range, etc.) and click "calculate dose" button. Organ dose, effective dose and CTDI will be shown in results area.

6. Register result

   User registers calculation result as your facility's data.

7. Statistical evaluation

   User can statistically evaluate exposure dose of CT scans in your facility.

---

Selectable CT model and exposure condition

	フィルタ条件	管電圧 [kV]
GE LightSpeed 16	Large, Small	80, 100,120
GE LightSpeed RT	Large, Small	80, 100,120
GE LightSpeed Ultra	Large, Small	80, 100, 120
GE LightSpeed VCT	Large, Medium, Small	80, 120
GE BrightSpeed Elite	Large, Medium	80, 100, 120, 140
GE Discovery CT750HD	Large, Medium, Small	80, 100, 120, 140
GE Revolution HD	Large, Medium, Small	80, 100, 120, 140
GE OptimaCT660	Large, Small	80, 100, 120, 140
GE Revoluiton EVO	Large, Small	80, 100, 120, 140
GE Revoluiton GSI	Large, Medium	80,100, 120, 140
GE Revoluiton CT	Large, Medium, Small	70, 80,100, 120, 140
Siemens SOMATOM Sensation 16	Standard	80, 120
Siemens SOMATOM Sensation 64	Standard	80, 100, 120
Siemens SOMATOM Emotion 6	Standard	80, 110, 130
Siemens SOMATOM Emotion 16	Standard	80, 110, 130
Siemens SOMATOM Perspective	Standard	80, 110, 130
Siemens SOMATOM Scope	Standard	80, 110, 130
Siemens SOMATOM Definition Flash	Standard, Wide	80, 100, 120, 140
Siemens SOMATOM Definition Edge	Standard	70, 80, 100, 120, 140
Siemens SOMATOM Definition AS	Standard	70, 80, 100, 120, 140
Siemens SOMATOM Definition AS+	Standard	70, 80, 100, 120, 140
Siemens SOMATOM Force	Standard	70, 80, 90, 100, 110, 120, 130, 140, 150
Siemens SOMATOM Confidence	Standard	70, 80, 100, 120, 140
Siemens SOMATOM Drive	Standard	70, 80, 90, 100, 110, 120, 130, 140
Canon Aquilion 16	Large, Small	80, 100, 120, 135
Canon Aquilion 64	Large, Small	80, 100, 120, 135
Canon Aquilion CXL	Large, Small	80, 100, 120, 135
Canon Alexion	Medium	80, 100, 120, 135
Canon Alexion Access Edition	Medium	80, 100, 120, 135
Canon Aquilion PRIME Beyond Edition	Large, Medium, Small	80, 100, 120, 135
Canon Aquilion PRIME Focus Edition	Large, Medium, Small	80, 100, 120, 135
Canon Aquilion Prime SP	Large, Small	80, 100, 120, 135
Canon Aquilion ONE ViSION Editon	Large, Medium, Small	80, 100, 120, 135
Canon Aquilion ONE GENESIS Edition	Large, Medium	80, 100, 120, 135
Canon Aquilion ONE NATURE Edition	Large, Medium	80, 100, 120, 135
Canon Aquilion ONE PRISM Edition	Large, Medium	80, 100, 120, 135
Canon Aquilion Presition	Large1, Large2, Small1	80, 100, 120,140
Hitachi Eclos 4	Normal	100, 120
Hitachi Eclos 8	Normal	100, 120
Hitachi Eclos 16	Normal	100, 120
Hitachi SCENARIA	Normal, Small	80, 100, 120, 140
Hitachi SCENARIA EX Edition	Normal, Small	80, 100, 120, 140
Hitachi SCENARIA View	Normal, Small	80, 100, 120, 140
Hitachi Supria	Normal	80, 100, 120, 140
Hitachi Supria Advance	Normal	80, 100, 120, 140
Hitachi Supria Grande	Normal	80, 100, 120, 140
Hitachi Supria Grande Advance	Normal	80, 100, 120, 140
Hitachi Supria Grande Premium	Normal	80, 100, 120, 140
Philips Brilliance 64	Large	80, 120
Philips Brilliance iCT	Large, Small	80, 120
Philips Ingenuity	Large	80, 120
Philips IQon Spectral CT	Standard	80, 100, 120, 140

As of June 1, 2022.
* Only single cube condition.
** "Wide filter" in Definition Flash is suitable for head exposure.

---

Selectable phantom

In WAZA-ARI v2, usrs can select the following phantoms for dose calculation.
The adult phantoms were built assuming average Japanese standard body type[1]. And the phantoms developed in the University of Florida were used as child phantom[2,3].

[1] K. Sato, et al. "Japanese adult male voxel phantom consructed on the basis of CT images", Radiat. Prot. Dosim. Vol. 123, No. 3, 337-344, 2007.
[2] C. Lee, , D. Lodwick, and W. Bolch, “Hybrid computational phantoms of the male and female newborn patient: NURBS-based whole-body models”, Phys. Med. Biol. 52, 3309-3333, 2007.
[3] C. Lee, D. Lodwick, J. Hurtado, D. Pafundi, J. Williams, and W. Bolch, “The UF family of reference hybrid phantoms for computational radiation dosimetry”, Phys. Med. Biol. 55, 339-363, 2010.

---

WAZA-ARI v2 user manual

WAZA-ARI v2 UserManual

---

Sample CSV file for uploading

Users can calculate organ dose for a lot of exposure conditions at one time when users select "Calculation of dose with data in a csv file" in menu window.
The following files are sample CSV file and Excel file for making CSV file.

Sample CSV file

Sample Excel file for makeing CSV file

---