A DTX-100 csontsurusegmero teljesitokepessegenek vizsgalata

Translated title of the contribution: Efficacy evaluation of the DTX-100 bone densitometer

C. Horváth, I. Krasznai

Research output: Contribution to journalArticle

Abstract

INTRODUCTION - DTX-100 is a new densitometer using the SXA method to assess bone mineral (BMC and BMD) in the distal or ultradistal forearm and in the diaphysis of the radius. Our knowledge is next to nothing about the relation of the results produced by this new SXA equipment to the traditional densitometers (SPA, DEXA) in peripheral or axial bones. PATIENTS AND METHODS - Routine SPA and DEXA scans of spine, femur and radius were taken in 132 patients suspected to osteoporosis. The forearm was also measured by DTX- 100. 7 patients and a forearm phantom were measured repeatedly to assess the precision error of the device. RESULTS - In vitro the following errors of precision were found:for BMC 0.11%, for BMD 0.17%, for area estimation 0.10%; in vivo at the distal site for BMC 0.26%, for BMD 0.59%, for area 0.65%; at the ultradistal site for BMD 1.32%, for area 1.62%; at the mid-shaft for BMC 0.78%, for BMD 1.41%. Strong correlations were found between the results obtained on different sites by the DTX-100 (r=0.66-0.92, n=132) as well as between results gained by DTX-100 and by a traditional SPA method (r=0.65- 0.93, n=56-82). The connection between the radius measured by DTX and spine/femur measured by DEXA is also very dose (r=0.61-0.83 for spine and 0.53-0.77 for femoral neck, respectively). CONCLUSION - DTX-100 offers a precise and comfortable way of bone mineral assessment and the results obtained are in good concordance with the DEXA measurements of the spine or hip. Using DTX-100, distal site of the forearm is the mostly recommended measurement due to its highest precision, being able to detect changes more than 1% in BMC or 1.7% in BMD.

Original languageHungarian
Pages (from-to)702-707
Number of pages6
JournalLege Artis Medicinae
Volume6
Issue number12
Publication statusPublished - 1996

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Forearm
Spine
Bone and Bones
Femur
Minerals
Diaphyses
Equipment and Supplies
Femur Neck
Photon Absorptiometry
Osteoporosis
Hip

ASJC Scopus subject areas

  • Medicine(all)

Cite this

A DTX-100 csontsurusegmero teljesitokepessegenek vizsgalata. / Horváth, C.; Krasznai, I.

In: Lege Artis Medicinae, Vol. 6, No. 12, 1996, p. 702-707.

Research output: Contribution to journalArticle

Horváth, C. ; Krasznai, I. / A DTX-100 csontsurusegmero teljesitokepessegenek vizsgalata. In: Lege Artis Medicinae. 1996 ; Vol. 6, No. 12. pp. 702-707.
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title = "A DTX-100 csontsurusegmero teljesitokepessegenek vizsgalata",
abstract = "INTRODUCTION - DTX-100 is a new densitometer using the SXA method to assess bone mineral (BMC and BMD) in the distal or ultradistal forearm and in the diaphysis of the radius. Our knowledge is next to nothing about the relation of the results produced by this new SXA equipment to the traditional densitometers (SPA, DEXA) in peripheral or axial bones. PATIENTS AND METHODS - Routine SPA and DEXA scans of spine, femur and radius were taken in 132 patients suspected to osteoporosis. The forearm was also measured by DTX- 100. 7 patients and a forearm phantom were measured repeatedly to assess the precision error of the device. RESULTS - In vitro the following errors of precision were found:for BMC 0.11{\%}, for BMD 0.17{\%}, for area estimation 0.10{\%}; in vivo at the distal site for BMC 0.26{\%}, for BMD 0.59{\%}, for area 0.65{\%}; at the ultradistal site for BMD 1.32{\%}, for area 1.62{\%}; at the mid-shaft for BMC 0.78{\%}, for BMD 1.41{\%}. Strong correlations were found between the results obtained on different sites by the DTX-100 (r=0.66-0.92, n=132) as well as between results gained by DTX-100 and by a traditional SPA method (r=0.65- 0.93, n=56-82). The connection between the radius measured by DTX and spine/femur measured by DEXA is also very dose (r=0.61-0.83 for spine and 0.53-0.77 for femoral neck, respectively). CONCLUSION - DTX-100 offers a precise and comfortable way of bone mineral assessment and the results obtained are in good concordance with the DEXA measurements of the spine or hip. Using DTX-100, distal site of the forearm is the mostly recommended measurement due to its highest precision, being able to detect changes more than 1{\%} in BMC or 1.7{\%} in BMD.",
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AB - INTRODUCTION - DTX-100 is a new densitometer using the SXA method to assess bone mineral (BMC and BMD) in the distal or ultradistal forearm and in the diaphysis of the radius. Our knowledge is next to nothing about the relation of the results produced by this new SXA equipment to the traditional densitometers (SPA, DEXA) in peripheral or axial bones. PATIENTS AND METHODS - Routine SPA and DEXA scans of spine, femur and radius were taken in 132 patients suspected to osteoporosis. The forearm was also measured by DTX- 100. 7 patients and a forearm phantom were measured repeatedly to assess the precision error of the device. RESULTS - In vitro the following errors of precision were found:for BMC 0.11%, for BMD 0.17%, for area estimation 0.10%; in vivo at the distal site for BMC 0.26%, for BMD 0.59%, for area 0.65%; at the ultradistal site for BMD 1.32%, for area 1.62%; at the mid-shaft for BMC 0.78%, for BMD 1.41%. Strong correlations were found between the results obtained on different sites by the DTX-100 (r=0.66-0.92, n=132) as well as between results gained by DTX-100 and by a traditional SPA method (r=0.65- 0.93, n=56-82). The connection between the radius measured by DTX and spine/femur measured by DEXA is also very dose (r=0.61-0.83 for spine and 0.53-0.77 for femoral neck, respectively). CONCLUSION - DTX-100 offers a precise and comfortable way of bone mineral assessment and the results obtained are in good concordance with the DEXA measurements of the spine or hip. Using DTX-100, distal site of the forearm is the mostly recommended measurement due to its highest precision, being able to detect changes more than 1% in BMC or 1.7% in BMD.

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