Active palpation sensor for detecting prostatic cancer and hypertrophy

Mami Tanaka; Mitsuyuki Furubayashi; Yoshikatsu Tanahashi; Seiji Chonan

doi:10.1117/12.420885

21 March 2001 Active palpation sensor for detecting prostatic cancer and hypertrophy

Mami Tanaka, Mitsuyuki Furubayashi, Yoshikatsu Tanahashi, Seiji Chonan

Proceedings Volume 4235, Smart Structures and Devices; (2001) https://doi.org/10.1117/12.420885
Event: Smart Materials and MEMS, 2000, Melbourne, Australia

Abstract

This paper is concerned with the development of an active palpation sensor for detecting the prostatic cancer and hypertrophy. The receptor of the sensor is a polyvinylidene fluoride (PVDF) film placed on the surface of a sponge rubber layer. It is mounted on a linear z-translation bar and inserted into the examinee's rectum being protected by a medical rubber glove. After positioned faced to the prostate gland, the sensor probe is driven sinusoidally at about 50Hz with peak-to-peak amplitude 2mm. The voltage signal from the PVDF film is integrated over the sampling period and used as the output of sensor for extracting the features of the collected data. The evaluation of stiffness by the sensor on 27 normal and unhealthy prostate glands are compared with the results of diagnosis by the doctor's palpation. It is shown that the output of sensor becomes greater with an increase of the stiffness of the prostate gland, which has good correlation with the doctor's evaluation on the stiffness. Further results on the laboratory test reconfirm that the present sensor well discriminates the stiffness of the prostate glands in vivo and non-invasively.

Citation Download Citation

Mami Tanaka, Mitsuyuki Furubayashi, Yoshikatsu Tanahashi, and Seiji Chonan "Active palpation sensor for detecting prostatic cancer and hypertrophy", Proc. SPIE 4235, Smart Structures and Devices, (21 March 2001); https://doi.org/10.1117/12.420885

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available