Table 1

Gamma Knife metrics

MetricStatistics (if available)
Cumulative number of patients treated by indication category809 900 through 2013, up from 740 200 through 2012
Malignant tumours: 354 500 through 2013
Benign tumours: 295 600 through 2013
Functional disorders: 60 000 through 2013
Vascular disorders: 96 800 through 2013
Ocular disorders: 3100 through 2013
Number of patients treated by indication category69 700 patients treated in 2013, up from 65 900 in 2012
Malignant tumours: 30 000 in 2013
Benign tumours: 27 300 in 2013
Functional disorders: 5200 in 2013
Vascular disorders: 6900 in 2013
Ocular disorders: 200 in 2013
Relative distribution of indications per year43% malignant tumours, 39% benign tumours, 10% vascular disorders, 7% functional disorders, 1% ocular disorders
Cumulative number of patients treated by indication (North America)Malignant tumours: 99 700 (48%)
Benign tumours: 59 100 (28%)
Functional disorders: 33 200 (16%)
Vascular disorders: 15 900 (8%)
Other indications 100 (0%)
Accumulated treatments by region and indicationAsia excl. Japan: 58 533 malignant tumours, 109 143 benign tumours, 35 986 vascular disorders, 11 292 functional disorders, 334 ocular disorders
North America: 99 690 malignant tumours, 59 073 benign tumours, 15 937 vascular disorders, 33 232 functional disorders, 113 ocular disorders
Japan: 141 032 malignant tumours, 39 155 benign tumours, 14 752 vascular disorders, 4797 functional disorders, 98 ocular disorders
Europe: 52 424 malignant tumours, 76 234 benign tumours, 26 379 vascular disorders, 9762 functional disorders, 2437 ocular disorders
Latin America: 956 malignant tumours, 1878 benign tumours, 1539 vascular disorders, 260 functional disorders, 52 ocular disorders
Middle East and Africa: 1900 malignant tumours, 10 080 benign tumours, 2299 vascular disorders, 608 functional disorders, 20 ocular disorders
Average treatments per site and total number of treatments by region2013 average treatments per site: 263
Asia excluding Japan: 374 average treatments per site, 19 436 total number of treatments
North America: 154 average treatments per site, 16 635 total number of treatments
Japan: 237 average treatments per site, 12 797 total number of treatments
Europe: 478 average treatments per site, 17 672 total number of treatments
Latin America: 104 average treatments per site, 731 total number of treatments
Middle East and Africa: 352 average treatments per site, 2462 total number of treatments
Treatments by regionCumulative number of patients treated per year:
Asia excluding Japan—215 200 through 2013; 195 800 through 2012
Europe—167 200 through 2013; 149 600 through 2012
Japan—199 800 through 2013; 187 000 through 2012
Latin America—4700 through 2013; 3900 through 2012
Middle East and Africa—14 900 through 2013; 12 400 through 2012
North America—208 000 through 2013; 191 400 through 2012
Number of patients treated per year:
Asia excluding Japan—19 436 in 2013; 19 309 in 2012
Europe—17 672 in 2013; 16 081 in 2012
Japan—12 797 in 2013; 13 299 in 2012
Latin America—731 in 2013; 755 in 2012
Middle East and Africa—2462 in 2013; 1159 in 2012
North America—16 635 in 2013; 15 317 in 2012