Letter from the Editors

Article Outline

• Copyright

This issue represents the second part of a comprehensive update on the evolution and current status of skeletal scintigraphy. As was evident from Part I of this seminar, the current use of fusion imaging with both positron emission tomography/computed tomography (CT) and single-photon emission computed tomography/CT has greatly enhanced the specificity of these sensitive imaging modalities. Doctors Gnanasegaran and Fogelman, in their guest editorial, provide specific details on the content of the individual articles in this issue. Although it is now a radiographic rather than a radionuclide procedure, the editors have included a current status report on bone densitometry. This frequently performed study originated with an isotope source and was replaced with a dual energy x-ray source 10-15 years ago. Because of this historic evolution, many nuclear medicine facilities, including ours, have continued to be the primary departments performing and interpreting the study. These 2 issues represent a state-of-the-art update on one of our most important, everyday procedures. It should provide the reader with a useful reference source when dealing with many of the frequently encountered clinical problems that have been discussed. We would like to thank our guest editors for enlisting an outstanding group of authors in addition to their own contributions.