TW202235050A - 生物阻抗技術評估局部或全身骨密度之方法 - Google Patents

生物阻抗技術評估局部或全身骨密度之方法 Download PDF

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TW202235050A
TW202235050A TW110107862A TW110107862A TW202235050A TW 202235050 A TW202235050 A TW 202235050A TW 110107862 A TW110107862 A TW 110107862A TW 110107862 A TW110107862 A TW 110107862A TW 202235050 A TW202235050 A TW 202235050A
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謝坤昌
彭姵禎
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興友科技股份有限公司
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/05Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves 
    • A61B5/053Measuring electrical impedance or conductance of a portion of the body
    • A61B5/0537Measuring body composition by impedance, e.g. tissue hydration or fat content
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/103Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A61B5/107Measuring physical dimensions, e.g. size of the entire body or parts thereof
    • A61B5/1072Measuring physical dimensions, e.g. size of the entire body or parts thereof measuring distances on the body, e.g. measuring length, height or thickness
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/45For evaluating or diagnosing the musculoskeletal system or teeth
    • A61B5/4504Bones
    • A61B5/4509Bone density determination
    • AHUMAN NECESSITIES
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    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/68Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6801Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/6813Specially adapted to be attached to a specific body part
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    • AHUMAN NECESSITIES
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    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/68Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
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    • A61B5/6829Foot or ankle
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    • G16HHEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/45For evaluating or diagnosing the musculoskeletal system or teeth
    • A61B5/4538Evaluating a particular part of the muscoloskeletal system or a particular medical condition
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Abstract

一種生物阻抗技術評估局部或全身骨密度之方法,其包含:步驟(a)由一生物阻抗測量儀測得一受測者之電阻及電抗,以及取得受測者之身高;步驟(b)受測者之局部或全身骨密度由下列計算公式計算而得:BMD=a + b R/H+d Xc/H,其中,a、b、d為權重係數;R為該受測者之電阻;Xc為該受測者之電抗;H為該受測者之身高,藉此可達成降低測量成本以及測量快速之優點。

Description

生物阻抗技術評估局部或全身骨密度之方法
本發明係與骨密度評估技術有關,特別是指一種生物阻抗技術評估局部或全身骨密度之方法。
目前大多數的骨量檢查方法,都是根據骨骼與軟組織對離子化的放射量有不同的吸收程度來測量,其中使用雙能X光吸收儀(dual energy X-ray absorptiometry, DXA)以礦物質量(g/cm 2)來表示骨密度(bone mineral density, BMD)而被廣為接受。
不過儘管DXA應用於測量BMD的方法為大家所接受,但因為DXA測量費用昂貴,且其測量場所必須在醫院或相關專業機構實施,故無法應用於家庭保健,此外DXA每次測量皆需要花費數十分鐘,因此,現行所使用DXA測量骨密度的方法,其成本高且費時,在使用上並不便利。
本發明之主要目的乃在於提供一種生物阻抗技術評估局部或全身骨密度之方法,相較於先前技術,本發明的成本低、快速,具有使用上之便利性。
為了達成上述之目的,本發明提供之一種生物阻抗技術評估局部或全身骨密度之方法,其包含以下步驟:
步驟(a) 由一生物阻抗測量儀測得一受測者之電阻(resistance, R)及電抗(reactance, Xc),以及取得該受測者之身高。
步驟(b) 該受測者局部或全身之骨密度由下列計算公式計算而得:
BMD=a + b R/H+d Xc/H,其中,a、b、d為權重係數;R為該受測者之電阻;Xc為該受測者之電抗;H為該受測者之身高。
藉此,本發明提供之一種生物阻抗技術評估局部或全身骨密度之方法,僅藉由生物阻抗測量儀取得受測者之電阻、電抗以及身高,再藉由計算公式BMD=a+ b R/H+d Xc/H計算後,即可測得骨密度,相較於先前技術,本發明的成本低、快速,具有使用上之便利性。
為了詳細說明本發明之技術特點所在,茲針對以下一較佳實施例,並配合圖式1-3說明如後,其中:本發明之生物阻抗技術評估局部或全身骨密度之方法10,其包含 (如圖1所示):
步驟(a) 由一生物阻抗測量儀20測得一受測者之電阻及電抗,以及取得該受測者之身高。
在本較佳實施例中,該受測者之身高係由身高尺測量後以手動輸入該生物阻抗測量儀20,身高尺精度取至0.5cm(但不以此為限),藉此能夠取得最符合該受測者現況的身高,以提升本發明評估結果之準確性。在其他較佳實施例中,亦可由該受測者直接提供其身高,並以自動且有線/無線的方式傳輸至該生物阻抗測量儀20,故該生物阻抗測量儀20的選擇及該生物阻抗測量儀20取得該受測者之身高的方式,不僅以本較佳實施例為限。
如圖2所示,在本較佳實施例中,該生物阻抗測量儀20測量該受測者之電阻及電抗的方式,該受測者係以仰臥姿進行該生物阻抗測量儀20測量,藉此降低評估的誤差,且該生物阻抗測量儀20之複數電極組21,該複數電極組21之數量係以二為例,該複數電極組21接觸該受測者之右手及右腳形成測量迴路,各該電極組21具有一感測電極23及一電流電極25,該感測電極23及該電流電極25相距5公分,基於生物阻抗測量之特性,藉此能提升本發明評估之準確性;在其他較佳實施例中,該受測者亦能以站姿進行該生物阻抗測量儀20測量,該複數電極組21亦可為分別接觸該受測者之雙手、雙腳、右手對左腳、左手對右腳、左手對左腳等方式測量,且在測量模式不同的狀況下,該複數電極組21之數量亦可超過二,而該感測電極23及該電流電極25亦可介於1-5公分或5-10之間,故該複數電極組21之數量,以及該受測者進行該生物阻抗測量儀20測量之電阻及電抗的方式,不僅以本較佳實施例為限。
在本較佳實施例中,該生物阻抗測量儀20係測量該受測者的全身(BMD total)、腰椎 (BMD LS)及右上肢(BMD right arm),共三個部位的骨密度。在其他較佳實施例中,亦可依需求而選擇測量該受測者其他部位,以及依需求增加或減少該受測者的測量部位。
(b) 該受測者局部或全身之骨密度由下列計算公式計算而得:
BMD=a+ b R/H+d Xc/H,其中,a、b、d為權重係數;R為該受測者之電阻;Xc為該受測者之電抗;H為該受測者之身高。
在本較佳實施例中, a、b、d之權重係數係使用DXA並針對數百位試驗者的全身、腰椎及右上肢,共取得三個部位之骨密度平均值後獲得。在其他較佳實施例中,以及a、b、d之權重係數亦可藉由定量式超音波檢查儀、定量式電腦斷層檢查(quantitative computed tomography)或傳統X光檢查等儀器測量後獲得;以及,亦可依需求而選擇測量試驗者的其他部位,以及依需求增加或減少試驗者的測量部位,因此,測量試驗者的儀器以及身體部位不僅以本較佳實施例為限。
如圖3所示,本較佳實施例之結果,在廣義線性模型迴歸分析(GLM regression analysis)所對應的權重係數與相關性,顯示該受測者R/H、Xc/H的數值,與DXA所測得全身、腰椎及右上肢之數值,有正相關的關係。
由此可證,本發明提供之一種生物阻抗技術評估局部或全身骨密度之方法,僅藉由生物阻抗測量儀取得受測者之電阻、電抗以及身高,再藉由計算公式BMD=a+ b R/H+d Xc/H計算後,即可測得骨密度,相較於先前技術,本發明的成本低、快速,具有使用上之便利性。
10:生物阻抗技術評估局部或全身骨密度之方法 20:生物阻抗測量儀 21:電極組 23:感測電極 25:電流電極
圖1係本發明一較佳實施例之流程圖。 圖2係本發明一較佳實施例之方塊圖。 圖3係本發明一較佳實施例之GLM regression analysis圖。
10:生物阻抗技術評估局部或全身骨密度之方法

Claims (3)

  1. 一種生物阻抗技術評估局部或全身骨密度之方法,其包含以下步驟: (a)  由一生物阻抗測量儀測得一受測者之電阻及電抗,以及取得該受測者之身高; (b) 該受測者局部或全身之骨密度由下列計算公式計算而得: BMD=a+ b R/H+d Xc/H,其中,a、b、d為權重係數;R為該受測者之電阻;Xc為該受測者之電抗;H為該受測者之身高。
  2. 如請求項1所述之生物阻抗技術評局部或全身估骨密度之方法,其中:步驟(a)中該生物阻抗測量儀測量該受測者之電阻及電抗的方式,係將該生物阻抗測量儀之複數電極組,該複數電極組係接觸該受測者之手及腳、雙手或雙腳形成測量迴路,各該電極組具有一感測電極及一電流電極,該感測電極及該電流電極相距1-10公分。
  3. 如請求項1所述之生物阻抗技術評估局部或全身骨密度之方法,其中:步驟(a)中該受測者係以仰臥、站或坐姿進行該生物阻抗測量儀測量。
TW110107862A 2021-03-05 2021-03-05 生物阻抗技術評估局部或全身骨密度之方法 TWI751050B (zh)

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TW110107862A TWI751050B (zh) 2021-03-05 2021-03-05 生物阻抗技術評估局部或全身骨密度之方法
CN202110404726.1A CN115024709A (zh) 2021-03-05 2021-04-15 生物阻抗技术评估局部或全身骨密度的方法
JP2022028849A JP7233135B2 (ja) 2021-03-05 2022-02-28 生体インピーダンス技術によって局部または全身の骨密度を測定する方法
EP22159104.3A EP4052645A1 (en) 2021-03-05 2022-02-28 Method of bioimpedance technology to evaluate local or whole body bone mineral density
US17/687,022 US20220280059A1 (en) 2021-03-05 2022-03-04 Method of bioimpedance technology to evaluate local or whole body bone mineral density

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JP4033614B2 (ja) 2000-08-29 2008-01-16 株式会社タニタ 骨密度推定方法および装置並びに骨粗鬆症判定計
JP2002238904A (ja) * 2001-02-19 2002-08-27 Tanita Corp 骨密度推定方法および骨密度推定装置
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CN103829943B (zh) * 2014-03-17 2016-01-20 四川宇峰科技发展有限公司 基于电阻抗原理和超声波分析的互补式骨密度检测仪
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