The Experts below are selected from a list of 135 Experts worldwide ranked by ideXlab platform
P E Danielsson - One of the best experts on this subject based on the ideXlab platform.
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The synthesis of a new X-Ray Picture identical in projection to a previous Picture using 3D Fourier techniques.
Physics in medicine and biology, 1994Co-Authors: P E Carlsson, P R Edholm, P E DanielssonAbstract:A central problem in diagnostic radiology is to compare a new X-Ray Picture with a previous Picture and from this comparison be able to decide whether anatomical changes have occurred in the patient or not. It is of primary interest that these Pictures are identical in projection. If not it is difficult to decide with confidence whether differences between the Pictures are due to anatomical changes or differences in projection. The authors present the geometrical problem and introduce some assumptions that make it possible to find the relative changes in the projection geometry between the eXposure of a previous Picture and a new Picture. The method presented is based on the projection slice theorem (central section theorem). By using 3D Fourier transform techniques the authors are able to synthesize a new X-Ray Picture from a set of Pictures eXposed from a circular orbit above the patient.
P E Carlsson - One of the best experts on this subject based on the ideXlab platform.
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The synthesis of a new X-Ray Picture identical in projection to a previous Picture using 3D Fourier techniques.
Physics in medicine and biology, 1994Co-Authors: P E Carlsson, P R Edholm, P E DanielssonAbstract:A central problem in diagnostic radiology is to compare a new X-Ray Picture with a previous Picture and from this comparison be able to decide whether anatomical changes have occurred in the patient or not. It is of primary interest that these Pictures are identical in projection. If not it is difficult to decide with confidence whether differences between the Pictures are due to anatomical changes or differences in projection. The authors present the geometrical problem and introduce some assumptions that make it possible to find the relative changes in the projection geometry between the eXposure of a previous Picture and a new Picture. The method presented is based on the projection slice theorem (central section theorem). By using 3D Fourier transform techniques the authors are able to synthesize a new X-Ray Picture from a set of Pictures eXposed from a circular orbit above the patient.
Judith K. Woodford - One of the best experts on this subject based on the ideXlab platform.
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Biophysical Studies of Interactions of Hirudin Analogs with Bovine and Human Thrombin by ESR and Fluorescence Labelling Studies
Advances in experimental medicine and biology, 1993Co-Authors: Lawrence J. Berliner, Judith K. WoodfordAbstract:The interactions between thrombin and synthetic or natural (polypeptide) inhibitors has been well characterized at the atomic level by X-Ray crystallography as evidenced by the spectacular progress outlined elsewhere in this book. In some cases, however, elements of structural disorder in the X-Ray Picture are clouded by uncertainties as to the origins of this disorder: multiple conformers of the protein crystal packing effects or real conformational changes resulting from the enzyme:inhibitor interaction.
P R Edholm - One of the best experts on this subject based on the ideXlab platform.
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The synthesis of a new X-Ray Picture identical in projection to a previous Picture using 3D Fourier techniques.
Physics in medicine and biology, 1994Co-Authors: P E Carlsson, P R Edholm, P E DanielssonAbstract:A central problem in diagnostic radiology is to compare a new X-Ray Picture with a previous Picture and from this comparison be able to decide whether anatomical changes have occurred in the patient or not. It is of primary interest that these Pictures are identical in projection. If not it is difficult to decide with confidence whether differences between the Pictures are due to anatomical changes or differences in projection. The authors present the geometrical problem and introduce some assumptions that make it possible to find the relative changes in the projection geometry between the eXposure of a previous Picture and a new Picture. The method presented is based on the projection slice theorem (central section theorem). By using 3D Fourier transform techniques the authors are able to synthesize a new X-Ray Picture from a set of Pictures eXposed from a circular orbit above the patient.
Schadmand-fischer S - One of the best experts on this subject based on the ideXlab platform.
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Galeazzi's fracture in the X-Ray Picture
Aktuelle Radiologie, 1993Co-Authors: Hans-ulrich Kauczor, Schadmand-fischer SAbstract:Galeazzi's fracture represents the rather rare association of a fracture of the radial shaft with disruption of the distal radio-ulnar joint (13). The assessment of 19 galeazzi's fractures revealed the typical displacement of the distal radial fragment with a concomitant contraction in 7 and a lateral dislocation to the ulnar and/or volar side in 7 cases. The characteristic dorsal and/or lateral dislocation of the ulna following the disruption of the distal radio-ulnar joint was seen in 16 patients. Besides this dislocation additional radiographic signs of the rupture of the capsule and ligaments were a widening of the joint space of the distal radio-ulnar articulation shown on the ap-projection in 10, a pathological shortening of the radius or ulnae in 7 and the avulsion of the ulnar styloid process in 10 patients.
