Global Patent Index - EP 1237479 A2

EP 1237479 A2 2002-09-11 - NON-INVASIVE SCREENING OF SKIN DISEASES BY VISIBLE/NEAR-INFRARED SPECTROSCOPY

Title (en)

NON-INVASIVE SCREENING OF SKIN DISEASES BY VISIBLE/NEAR-INFRARED SPECTROSCOPY

Title (de)

NICHTINVASIVES SCREENING VON HAUTERKRANKUNGEN MITTELS SPEKTROSKOPIE IM SICHTBAREM / NAHEM INFRAROT

Title (fr)

DIAGNOSTIC NON INVASIF DE MALADIES DE LA PEAU PAR SPECTROSCOPIE DANS LE VISIBLE/L'INFRAROUGE PROCHE

Publication

EP 1237479 A2 (EN)

Application

EP 00967472 A

Priority

  • CA 0001187 W
  • US 15785799 P

Abstract (en)

[origin: WO0124699A2] A non-invasive tool for skin disease diagnosis would be a useful clinical adjunct. The purpose of this study was to determine whether visible/near-infrared spectroscopy can be used to non-invasively characterize skin diseases. In-vivo visible- and near-infrared spectra (400-2500 nm) of skin neoplasms (actinic keratoses, basal cell carcinomata, banal common acquired melanocytic nevi, dysplastic melanocytic nevi, actinic lentigines and seborrheic keratoses) were collected by placing a fiber optic probe on the skin. Paired t-tests, repeated measures analysis of variance and linear discriminant analysis were used to determine whether significant spectral differences existed and whether spectra could be classified according to lesion type. Paired t-tests showed significant differences (p<0.05) between normal skin and skin lesions in several areas of the visible/near-infrared spectrum. In addition, significant differences were found between the lesion groups by analysis of variance. Linear discriminant analysis classified spectra from benign lesions compared to pre-malignant or malignant lesions with high accuracy. Visible/near-infrared spectroscopy is a promising non-invasive technique for the screening of skin diseases.

IPC 1-7 (main, further and additional classification)

A61B 5/103

IPC 8 full level (invention and additional information)

A61B 5/103 (2006.01)

CPC (invention and additional information)

A61B 5/444 (2013.01); A61B 5/0075 (2013.01); A61B 5/445 (2013.01); A61B 5/7264 (2013.01)

Citation (search report)

See references of WO 0124699A2

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 0124699 A2 20010412; WO 0124699 A8 20011004; AU 7766200 A 20010510; AU 782431 B2 20050728; CA 2396883 A1 20010412; CA 2396883 C 20110412; EP 1237479 A2 20020911

INPADOC legal status


2006-11-22 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20060503

2002-09-11 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20020503

2002-09-11 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2002-09-11 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Free text: AL;LT;LV;MK;RO;SI