Surgical gamma probe with TlBr semiconductor for identification of sentinel lymph node

Author

Da Costa, Fábio E. ; Rela, Paulo R. ; De Oliveira, Icimone B. ; Pereira, Maria C C ; Hamada, Margarida M.

Author_Institution

IPEN/CNEN-SP, Cidade Univ., Sao Paulo, Brazil

Volume

53

Issue

3

fYear

2006

fDate

6/1/2006 12:00:00 AM

Firstpage

1403

Lastpage

1407

Abstract

Intraoperative gamma probes have been widely used in surgery oriented to locate the sentinel lymph nodes in breast cancer and malignant melanoma during the surgery. In this paper, a surgical gamma probe using TlBr as a crystal semiconductor detector was developed. The performance of the probe with a maximum sensitivity of 10 cps/kBq and 11 mm of spatial resolution in 10 mm depth shows that the TlBr crystal is suitable to be used in a sentinel lymph node gamma probe. The final probe size was 12.7 mm diameter, 170 mm long and the detection performance met the necessary requirements to be used in radioguided surgery.

Keywords

cancer; gamma-ray detection; semiconductor counters; surgery; TIBr semiconductor; breast cancer; crystal semiconductor detector; intraoperative gamma probes; malignant melanoma; radioguided surgery; sentinel lymph node; surgical gamma probe; Breast cancer; Breast neoplasms; Energy resolution; Gamma ray detection; Gamma ray detectors; Lymph nodes; Oncological surgery; Photonic crystals; Probes; Spatial resolution; Gamma probe; lymph node; thallium bromide;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/TNS.2006.874472

Filename

1645052