COLLIMATION OF X-RAY DIAGNOSTIC BUNDLE BY MEANS OF STEERING FERROFLUID

Andrzej Dyszkiewicz, Paweł Połeć, Jakub Zajdel, Bartłomiej Pawlus, Damian Chachulski, Paweł Kpiński

Abstract

The study addressed the problem of the incoherence of an X-ray tube generated bundle. In spite of the large progress made in the area of the durability and efficiency of these devices, the problem of the inherent divergence of the bundle hasnt yet been resolved in a satisfying way. In the face of difficulties with concentrating X-rays, the only practical way of eliminating non-axial rays is by applying lead collimators of a suitable length and diameter as well as mechanical systems of movable distracting grids. An entirely new approach has been the use of electro-magnetorheological fluids as filters, which are capable of modifying their physical and quantum properties contingently based on the parameters of the applied external electric current, centrifugal force and magnetic field. The experiments carried out showed, that the described changes also concern the absorbtion, distraction or change in the direction of the X-ray beam. In the constructed prototype device, interesting and recurrent results in the modification or eleimination of non-axial rays were obtained, which resulted in the improvement of the quality of bone images. The following research questions were posed: (1) are changes in the photodensitometric parameters of joint (PIP) X-ray images containing soft and osseous tissues proof of alterations of the physical parameters of a diagnostic X-ray beam? (2) is there a relationship between the volume of ferrofluid in a lens and its capability to alter the parameters of a permeating X-ray beam? (3) is there a relationship between the r.p.m. of the collimator and its capability to alter the parameters of a permeating X-ray beam, and does it have a linear character? Based on the conducted research a non-linear dependancy was observed between the volume of ferrofluid in the lens as well as its rotational speed and the capability of the system to alter the parameters of the permeating X-ray beam.

References

  1. Bankier A, Fleichmann D, Aram L, Heimberger K, Schindler E, Herold C. Bildgebung in der Intensivmedizin Techniken, Indikationen, diagnostische Zeichen. In: Bardenheuer H, Hilfiker O, Larsen R, Radke J. Weiterbildung fr Ansthesisten. Springer,Berlin, 15-48
  2. Carlson J. D., Electrorheological Fluids, US Patent 4,772, 407
  3. Czerny C. Steiner E., Gstttner W., Baumgartner WD., Imhof H. Postoperative radiographic assessment of the Combi 40 cochlear implant. Am. Journ.of Roentgenology 1997:169(6):1689
  4. Dyszkiewicz A, Sapota G, Wrbel Z. Standaryzowana fotometria zdj radiologicznych ukadu kostnego w tworzeniu komputerowych algorytmw densytometrycznych. Konf. TIM 99, Jaszowiec 1999
  5. Dyszkiewicz A, Wrbel Z. The procedure of supervising treatment of thyroid gland with isotope j 131 and using 2d and 3d analysis of scintigraphical image. ICXOM Vienna 2001
  6. Dyszkiewicz A. Procedure for monitoring the evolution of inflammatory and degeneration changes in sacroiliaclumbar joints and correcting the rtg-picture density divergence. ICXOM Vienna 2001
  7. Dyszkiewicz A., Kolumna chromatograficzna do sczenia lub filtracji, patent PL 175577
  8. Grampp S. Steiner E. Imhof H. Radiological diagnosis of osteoporosis. Eur J Radiol 1997a:7:2:S11-9
  9. Grampp H. Genant A. Mathur Ph. Lang M. Jergas M. Takada C. Gler Y. Lu, M. Chavez Comparison of noninvasive bone mineral measurements in assessing age-related loss, fracture discrimination, and diagnostic classification. J Bone Miner Res 12 (5) (1997b): 697
  10. Kainberger F. Mittermaier F. Seidl G. Parth E. Weinstabl R. Imaging of tendons-adaptation' degeneration' rupture. Eur J Radiol 1997:25(3):209
  11. Kollmann, K. Turetschek, W. Backfrieder, G. Mostbeck Quantitative analysis with an amplitude-coded color Doppler imaging system (in-vitro study). World Congress on Medical Physics and Biomedical Engineering. Nice, France Sept 14-19, 1997
  12. Kramer J. Hofmann S. Plenk H. Schneider W. Engel A. Imaging of avascular necrosis of bone. Eur Radiol 1997: 7:2:180
  13. Lawniczak A., Milecki A., Ciecze elektro- i magnetoreologiczne oraz ich zastosowania w technice, Wydawnictwo Politechniki Poznaskiej 1999
  14. Majumdar, H. Genant, S. Grampp, D.C. Newitt, V. Truong, J.C. Lin, A. Mathur Correlation of trabecular bone structure with age, bone mineral density, and osteoporotic status: in vivo studies in the distal radius using high resolution magnetic resonance imaging. J Bone Miner Res 12 (1) (1997): 111
  15. Rand T. Seidl G. Kainberger F. Resch A. Hittmair K. Schneider B. Gler CC. Imhof H. Impact of spinal degenerative changes on the evaluation of bone mineral density with dual x-ray absorptiometry (DXA). Calc. Tissue 1997: 60:430
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Paper Citation


in Harvard Style

Dyszkiewicz A., Połeć P., Zajdel J., Pawlus B., Chachulski D. and Kpiński P. (2009). COLLIMATION OF X-RAY DIAGNOSTIC BUNDLE BY MEANS OF STEERING FERROFLUID . In Proceedings of the International Conference on Biomedical Electronics and Devices - Volume 1: Special Session AMMD, (BIOSTEC 2009) ISBN 978-989-8111- 64-7, pages 441-447. DOI: 10.5220/0001817704410447


in Bibtex Style

@conference{special session ammd09,
author={Andrzej Dyszkiewicz and Paweł Połeć and Jakub Zajdel and Bartłomiej Pawlus and Damian Chachulski and Paweł Kpiński},
title={COLLIMATION OF X-RAY DIAGNOSTIC BUNDLE BY MEANS OF STEERING FERROFLUID},
booktitle={Proceedings of the International Conference on Biomedical Electronics and Devices - Volume 1: Special Session AMMD, (BIOSTEC 2009)},
year={2009},
pages={441-447},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001817704410447},
isbn={978-989-8111- 64-7},
}


in EndNote Style

TY - CONF
JO - Proceedings of the International Conference on Biomedical Electronics and Devices - Volume 1: Special Session AMMD, (BIOSTEC 2009)
TI - COLLIMATION OF X-RAY DIAGNOSTIC BUNDLE BY MEANS OF STEERING FERROFLUID
SN - 978-989-8111- 64-7
AU - Dyszkiewicz A.
AU - Połeć P.
AU - Zajdel J.
AU - Pawlus B.
AU - Chachulski D.
AU - Kpiński P.
PY - 2009
SP - 441
EP - 447
DO - 10.5220/0001817704410447