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초음파 가열 시 In Vitro 및 In Vivo에서 Microwave Radio-Thermometer와 탐침온도계의 일치도 KCI 등재

In Vitro and In Vivo Agreement of Microwave Radio-Thermometer and Needle Probe Thermometer During Therapeutic Ultrasound

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한국전문물리치료학회지 (Physical Therapy Korea)
한국전문물리치료학회 (Korean Research Society of Physical Therapy)
초록

Therapeutic ultrasound is commonly applied for deep heating in physical therapy setting. However, it is difficult to determine the exact application dosage and to confirm the immediate heating effect. Microwave Radio-Thermometer (MRT) can measure the temperature by the electromagnetic energy in the microwave region of the object that emits above absolute zero temperature. MRT was used for early diagnosis of breast cancer since it was not harmful, non-invasive, and non-ionizing to the human body. The purposes of this study were to investigate how accurately 1.1 GHz RTM (RES Ltd. Russia) measures the change of average temperature in the tissue, and to determine the depth of temperature change measurement. Therapeutic ultrasound was applied (continuous wave for 5 minutes, 1 MHz, intensity of 1.5 [in vitro] and 1.0 [in vivo]) in four different conditions: (1) 30 cases of in vitro specimen of pork, (2) 30 cases of in vitro specimen of pork ankle joint, (3) 10 cases of in vivo canine thigh, and (4) 30 cases of in vivo human body. Intraclass Correlation Coeffients (ICC[3,1]) between average needle probe thermometer below surface and MRT temperature was revealed as followed: (1) Before ultrasound application ICCs ranges above .8 in specimen of pork (15 mm underneath the skin) and above .82 in specimen of pork ankle joint (10~30 mm underneath the skin). (2) After ultrasound application ICCs ranges above .7 in both specimens of pork and pork ankle joint. (3) Before ultrasound application ICCs ranges above .8 in canine thigh (20 mm underneath the skin). (4) After ultrasound application ICCs ranges above .82 in canine thigh. The temperature of the human body increased significantly with the mean of in muscle tissue and with the mean of in joint (p<.00). It was revealed that the average depth of temperature measurement of the tissue by MRT was in between 10 and 35 mm, and determined that the proper temperature measurement band was .

저자
  • 이수영(연세대학교 대학원 재활학과) | Lee Su-young
  • 조상현(연세대학교 보건과학대학 물리치료학과 및 보건과학연구소) | Cho Sang-hyun
  • 이충휘(연세대학교 보건과학대학 물리치료학과 및 보건과학연구소) | Yi Chung-hwi
  • 김종만(서남대학교 물리치료학과) | Kim Jong-man