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Table 1 Overview of the approved NBCA-R set

From: Transparency in quality of radiotherapy for breast cancer in the Netherlands: a national registration of radiotherapy-parameters

Section

Variables

Identification

 
 

Sex

 

Date of birth

General

 

RT institute

 

Date planning CT scan

 

Laterality tumour

Total treatment time

 

Date first fraction RT

 

Date last fraction RT

 

Date of the first RT consultation of this radiation plan

Target areas

 

Whole breast: yes/no

 

Partial breast: yes/no

 

Chest wall: yes/no

 

Boost breast or chest wall: yes/no

 

Interpectoral lymph nodes: yes/no

 

Axillary lymph node levels I-II: yes/no

 

Axillary lymph node levels III-IV: yes/no

 

Internal mammary lymph nodes: yes/no

 

Boost lymph nodes: yes/no

Prescribed dose

 Elective dose (local/regional)

Number of fractions

 Elective dose (local/regional)

Dose per fraction (Gy)a

 Dose on PTV boost tumour bed

Number of fractions

 Dose on PTV boost tumour bed

Dose per fraction (Gy)

 Dose on PTV boost lymph nodes

Number of fractions

 Dose on PTV boost lymph nodes

Dose per fraction (Gy)

 Type of boost

Simultaneous integrated boost vs sequential boost

Doses distribution on target areas

 PTV-electiveb

D2% (Gy)

 PTV-electiveb

D98% (Gy)

 PTV-electiveb

Dmean (Gy)

 PTV-Boost-tumour bed

V95% of prescribed dose (%)

 PTV-Boost-tumour bed

D2% (Gy)

 PTV-Boost-tumour bed

D98% (Gy)

 PTV-Boost-tumour bed

Dmean (Gy)

 PTV-Boost- axillary lymph nodes

V95% of prescribed dose (%)

 PTV-Boost- axillary lymph nodes

D2% (Gy)

 PTV-Boost- axillary lymph nodes

D98% (Gy)

 PTV-Boost- axillary lymph nodes

Dmean (Gy)

 PTV-elective minus PTV boostc

D2% (Gy)

 PTV-elective minus PTV boostc

D98% (Gy)

 PTV-elective minus PTV boostc

Dmean (Gy)

Dose in normal tissues

 Heart

D2% (Gy)

 Heart

Dmean (Gy)

 Ipsilateral breast

V95% of the prescribed boost dose in the body (mL)

 

Volume of CTV breast (mL)

 Lungs

Mean dose (Gy), both lungs

  1. Gy, Gray; CT-scan, computed tomography scan; RT, radiotherapy; mL, milliliter; PTV, planning target volume
  2. aPrescribed dose to the normalisation point
  3. bAll PTVs together: PTV breast/chest wall, PTV axillary lymph nodes including PTV boost if given
  4. cAll PTVs together: PTV breast/chest wall, PTV axillary lymph nodes minus PTV boost if given