Thermal change on optical penetration depth in human prostatic hyperplasia tissue in vitro

WEI Hua-jiang; XING Da; HE Bo-hua; WU Rong-hai; GU Huai-min; WU Guo-yong; CHEN Xue-mei

Volume 32 Issue 3

Apr. 2010

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Article Navigation > LASER TECHNOLOGY > 2008 > 32(3): 244-247

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Thermal change on optical penetration depth in human prostatic hyperplasia tissue in vitro

1.
MOE Key Laboratory of Laser Life Science, Institute of Laser Life Science, South China Normal University, Guangzhou 510631, China;
2.
Department of Surgery, Department of Clinical Medicine, Guangdong College of Pharmacy, Guangzhou 510224, China;
3.
Department of Urology, Central Hospital of Jiangmen, Jiangmen 529071, China;
4.
Department of Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China;

Corresponding author: WEI Hua-jiang, weih@jscnu.edu.cn ;
Received Date: 2007-03-06
Accepted Date: 2007-05-10

Abstract

Thermal change and its difference on the optical penetration depth of human benign prostatic hyperplasia(BPH) tissue was measured with a double-integrating-sphere setup at 532nm,670nm,830nm and 1064nm. The optical properties of BPH tissue were assessed from the measurement results using the inverse adding-doubling method.The results of measurement showed that,in exposure temperature range from 20℃ to 80℃,the optical penetration depth of BPH tissue at 532nm,670nm,830nm and 1064nm increased with increase of wavelengths,the optical penetration depth of BPH tissue at 532nm,670nm,830nm and 1064nm varied with a change of exposure temperature by thermal effect,change of the optical penetration depth of BPH tissue at 1064nm was significantly bigger than that of BPH tissues at 532nm,670nm and 830nm,respectively with increase of exposure temperature.Maximal optical penetration depths of BPH tissue at 532nm,670nm,830nm and 1064nm were respectively 0.404mm,0.539mm,0.699mm and 5.917mm at exposure temperature of 50℃,50℃,50℃ and 70℃,respectively,andminimal optical penetration depths were respectively 0.251mm,0.449mm,0.621mm and 1.542mm at exposure temperature of 20℃,20℃,80℃ and 60℃.The results of measurement indicated a few useful reference data for treatment of BPH using optical and thermal properties of laser.
- medical optics and biotechnology,
- tissue optics integrating-sphere,
- human benign prostatic hyperplasia tissue,
- laser,
- optical penetration depth,

References

[1]	XU Y M,ZHANG J,JIN C R,et al.Potassium titanyl phosphate laser vaporization prostatectomy for the treatment of benign prostatic hyperplasia[J].Chinese Journal of Urology,2004,25 (9):631-633 (in Chinese).
[2]	FANG J,XU G,DING Q,et al.Observation on the safety and efficacy of He-Ne laser equipment on chronic abacteria prostatitis[J].Journal of Fudan University (Medical Sciences),2005,32(2):234-235 (in Chinese).
[3]	QIN W J,WANG H,WANG F L,et al.Diode laser in treating prostatic hyperplasia:review of 420 cases[J].Journal of Fourth Military Medical University,2004,25 (18):1686-1688(in Chinese).
[4]	HONG B F,CHEN Y F,FU W J,et al.Experience with sacral block regional anesthesia for green light photoselectivc vaporization of prostate[J].Academic Journal of PLA Postgraduate Medical School,2006,27(1):58-59(in Chinese).
[5]	CHEN J B,XU X P,OU M R,et al.Effect of photodynamic therapy using HMME on benign prostatic hyperplasia in rats:a preliminary experimental investigation[J].Journal of Fuzhou University (Natural Science),2005,33 (4):545-548 (in Chinese).
[6]	ZHU D,LUO Q M,ZENG S Q,et al.Change in the optical properties of slowly heated human whole blood and albumen[J].Acts Optica Sinica,2002,22 (3):369-373 (in Chinese).
[7]	ESENALIEV R,LARINA I,LARIN K,et al.Laser optoaconstic technique for real-time measurement of thermal damage in tissues[J].SHE,1999,3594:98-109.
[8]	CHAN E,MENOVSKY T,WELCH A J.Effects of cryogenic grinding on soft-tissue optical properties[J].Appl Opt,1996,35 (22):4526-4532.
[9]	WEI H J,XING D,WU G Y,et al.Differences in optical properties between healthy and pathological human colon tissues using a Ti:sapphire laser:an in vitro study using the Monte Carlo inversion technique[J].Journal of Biomedical Optics,2005,10 (4):044022-1-044022-8.
[10]	ZHU D,LUO Q M,ZHU G M,et al.Kinetic thermal response and damage in laser coagulation of tissue[J].Lasers in Surgery and Medicine,2002,31(5):313-321.
[11]	WEI H J,LI X Y,LIU X X,et al.Scattering and absorbing characteristics of rabbit arteries and veins in Kubelka-Mnnk model at 488.0nm wavelength of Ar+ laser in vitro[J].Laser Technology,2001,25(6):460-463(in Chinese).
[12]	WEI H J,HE B H,CHEN X M,et al.Pathological changes and thermal coagulation of human liver tissue induced changes in the optical penetration depths in vitro[J].Laser Technology,2007,31(1):31-34(in Chinese).
[13]	WEI H J,LI X Y,WU G Y,et al.Transmittance absorption coefficients and scattering phase functions of human artery and vein for He-Ne laser[J].Laser Technology,2000,24 (6):345-348 (in Chinese).
[14]	WEI H J,XING D,LU J J,et al.Total attenuation coefficients of human bladder at different lasers measured by using the direct and indirect methods in vitro[J].Laser Technology,2005,29 (4):420-422(in Chinese).
[15]	PICKERING J W,MOES C J M,STERENBORG H J C M,et al.Two integrating spheres with an intervening scattering sample[J].J O S A,1992,9(4):621-631.
[16]	PRAHL S A,van GEMERT M J C,WELCH A J.Determining the optical properties of turbid media by using the adding-doubling method[J].Appl Opt,1993,32(4):559-568.
[17]	BOLIN F P,PREUSS L E,TAYLOR R C,et al.Refractive index of some mammalian tissues using a fiber optic cladding method[J].Appl Opt,1989,28(12):2297-2303.

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

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Thermal change on optical penetration depth in human prostatic hyperplasia tissue in vitro

Corresponding author: WEI Hua-jiang, weih@jscnu.edu.cn;

1. MOE Key Laboratory of Laser Life Science, Institute of Laser Life Science, South China Normal University, Guangzhou 510631, China;

2. Department of Surgery, Department of Clinical Medicine, Guangdong College of Pharmacy, Guangzhou 510224, China;

3. Department of Urology, Central Hospital of Jiangmen, Jiangmen 529071, China;

4. Department of Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China;

Received Date: 2007-03-06

Accepted Date: 2007-05-10

Available Online: 2008-06-25

Abstract: Thermal change and its difference on the optical penetration depth of human benign prostatic hyperplasia(BPH) tissue was measured with a double-integrating-sphere setup at 532nm,670nm,830nm and 1064nm. The optical properties of BPH tissue were assessed from the measurement results using the inverse adding-doubling method.The results of measurement showed that,in exposure temperature range from 20℃ to 80℃,the optical penetration depth of BPH tissue at 532nm,670nm,830nm and 1064nm increased with increase of wavelengths,the optical penetration depth of BPH tissue at 532nm,670nm,830nm and 1064nm varied with a change of exposure temperature by thermal effect,change of the optical penetration depth of BPH tissue at 1064nm was significantly bigger than that of BPH tissues at 532nm,670nm and 830nm,respectively with increase of exposure temperature.Maximal optical penetration depths of BPH tissue at 532nm,670nm,830nm and 1064nm were respectively 0.404mm,0.539mm,0.699mm and 5.917mm at exposure temperature of 50℃,50℃,50℃ and 70℃,respectively,andminimal optical penetration depths were respectively 0.251mm,0.449mm,0.621mm and 1.542mm at exposure temperature of 20℃,20℃,80℃ and 60℃.The results of measurement indicated a few useful reference data for treatment of BPH using optical and thermal properties of laser.

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Reference (17)

[1]	XU Y M,ZHANG J,JIN C R,et al.Potassium titanyl phosphate laser vaporization prostatectomy for the treatment of benign prostatic hyperplasia[J].Chinese Journal of Urology,2004,25 (9):631-633 (in Chinese).
[2]	FANG J,XU G,DING Q,et al.Observation on the safety and efficacy of He-Ne laser equipment on chronic abacteria prostatitis[J].Journal of Fudan University (Medical Sciences),2005,32(2):234-235 (in Chinese).
[3]	QIN W J,WANG H,WANG F L,et al.Diode laser in treating prostatic hyperplasia:review of 420 cases[J].Journal of Fourth Military Medical University,2004,25 (18):1686-1688(in Chinese).
[4]	HONG B F,CHEN Y F,FU W J,et al.Experience with sacral block regional anesthesia for green light photoselectivc vaporization of prostate[J].Academic Journal of PLA Postgraduate Medical School,2006,27(1):58-59(in Chinese).
[5]	CHEN J B,XU X P,OU M R,et al.Effect of photodynamic therapy using HMME on benign prostatic hyperplasia in rats:a preliminary experimental investigation[J].Journal of Fuzhou University (Natural Science),2005,33 (4):545-548 (in Chinese).
[6]	ZHU D,LUO Q M,ZENG S Q,et al.Change in the optical properties of slowly heated human whole blood and albumen[J].Acts Optica Sinica,2002,22 (3):369-373 (in Chinese).
[7]	ESENALIEV R,LARINA I,LARIN K,et al.Laser optoaconstic technique for real-time measurement of thermal damage in tissues[J].SHE,1999,3594:98-109.
[8]	CHAN E,MENOVSKY T,WELCH A J.Effects of cryogenic grinding on soft-tissue optical properties[J].Appl Opt,1996,35 (22):4526-4532.
[9]	WEI H J,XING D,WU G Y,et al.Differences in optical properties between healthy and pathological human colon tissues using a Ti:sapphire laser:an in vitro study using the Monte Carlo inversion technique[J].Journal of Biomedical Optics,2005,10 (4):044022-1-044022-8.
[10]	ZHU D,LUO Q M,ZHU G M,et al.Kinetic thermal response and damage in laser coagulation of tissue[J].Lasers in Surgery and Medicine,2002,31(5):313-321.
[11]	WEI H J,LI X Y,LIU X X,et al.Scattering and absorbing characteristics of rabbit arteries and veins in Kubelka-Mnnk model at 488.0nm wavelength of Ar+ laser in vitro[J].Laser Technology,2001,25(6):460-463(in Chinese).
[12]	WEI H J,HE B H,CHEN X M,et al.Pathological changes and thermal coagulation of human liver tissue induced changes in the optical penetration depths in vitro[J].Laser Technology,2007,31(1):31-34(in Chinese).
[13]	WEI H J,LI X Y,WU G Y,et al.Transmittance absorption coefficients and scattering phase functions of human artery and vein for He-Ne laser[J].Laser Technology,2000,24 (6):345-348 (in Chinese).
[14]	WEI H J,XING D,LU J J,et al.Total attenuation coefficients of human bladder at different lasers measured by using the direct and indirect methods in vitro[J].Laser Technology,2005,29 (4):420-422(in Chinese).
[15]	PICKERING J W,MOES C J M,STERENBORG H J C M,et al.Two integrating spheres with an intervening scattering sample[J].J O S A,1992,9(4):621-631.
[16]	PRAHL S A,van GEMERT M J C,WELCH A J.Determining the optical properties of turbid media by using the adding-doubling method[J].Appl Opt,1993,32(4):559-568.
[17]	BOLIN F P,PREUSS L E,TAYLOR R C,et al.Refractive index of some mammalian tissues using a fiber optic cladding method[J].Appl Opt,1989,28(12):2297-2303.

Thermal change on optical penetration depth in human prostatic hyperplasia tissue in vitro

Abstract

References

Proportional views

通讯作者: 陈斌, bchen63@163.com

Proportional views