Narodna in univerzitetna knjižnica, Ljubljana (NUK)
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Numerical simulation of scalp cooling to prevent chemotherapy-induced alopeciaJanssen, Francis-Paul E.M. ; Leeuwen, Gerard M.J. van ; Steenhoven, Anton A., 1951-One way of treating cancer is by chemotherapy. Side-effects of chemotherapy include hair loss. Cooling the scalp during treatment can reduce hair loss. For this cooling, a cap containing a cold fluid ... (cold cap) is used. However, the rate of success of this method varies strongly, because precise mechanismsof preservation are unknown. Temperature and perfusion are thought to play an important role in the hair preservative effect of scalp cooling. Togain more insight into these parameters, a computer model has been developed. With this, the influence of perfusion models is studied. The computer model comprises a head and cold cap, modeled with concentric shells representing brain, skull, fat, skin, hair and cold cap. Metabolism is temperature dependent and two relations from literature are used to model temperature dependent perfusion. Pennesć bio-heat equation is used to determine the heat transfer in the head. Steady state temperatures without cold cap are calculated and used as basal temperatures for metabolism and perfusion. Then, a cold cap (T = -30°C) is added and the development of temperature in time is calculated. For constant perfusion, a minimum skin temperature of 16.0°C is reached after 476 seconds. When skin blood flow is set to zero, the minimum temperature drops a further 1.5°C to 14.5°C. For the perfusion models, the drop in skin temperature results in a decreased perfusion, down to a value ranging from 19% to 33% of base level. The thickness of the hair layer is of great importance for both perfusion and temperature. Reducing the thickness resulted in a decrease in temperature of 5.7°C, and decreased relative perfusion by a further 0.10, indicating that chances of preserving hair are higher. For optimal protection against hair loss, the cold cap should fit the scalp as tightly as possible.Vir: Strojniški vestnik = Journal of mechanical engineering. - ISSN 0039-2480 (Letn. 51, št. 7/8, 2005, str. 386-390)Vrsta gradiva - članek, sestavni delLeto - 2005Jezik - angleškiCOBISS.SI-ID - 8610843
vir: Strojniški vestnik = Journal of mechanical engineering. - ISSN 0039-2480 (Letn. 51, št. 7/8, 2005, str. 386-390)
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
Baze podatkov, v katerih je revija indeksirana
Ime baze podatkov | Področje | Leto |
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Janssen, Francis-Paul E.M. | |
Leeuwen, Gerard M.J. van | |
Steenhoven, Anton A., 1951- |
Vir: Osebne bibliografije
in: SICRIS
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