Combined Scintigraphic and Radiographic Diagnosis of Bone by Yong-Whee Bahk, H.N.Jr. Wagner

By Yong-Whee Bahk, H.N.Jr. Wagner

The 3rd variation of mixed Scintigraphic and Radiographic prognosis of Bone and Joint ailments has been comprehensively rewritten and rearranged. It now encompasses, as well as the bone and joint ailments defined within the previous variants, hitherto unpublished novel purposes of pinhole scanning to the analysis of a broader spectrum of skeletal problems than ever ahead of, together with these of the gentle tissues. loads of state of the art scans and corroboratory radiograms bought utilizing CT, MRI and/or sonography are awarded part by way of part. The e-book has been significantly increased to debate 5 new issues: basic versions and Artifacts, Drug-Induced Osteoporosis, Soft-Tissue Tumors and Tumor-like stipulations, PET/CT in Bone and Joint ailments and A Genetic attention of Skeletal problems. Topical chapters on rheumatic skeletal issues, malignant tumors of bone, benign tumors of bone and anxious illnesses have additionally been completely rewritten and are complemented via the addition of a few ninety lately bought situations.

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Additional resources for Combined Scintigraphic and Radiographic Diagnosis of Bone and Joint Diseases (2007)

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A Posterior pinhole scintigraph of the lumbar spine in a 12-year-old girl demonstrates intense tracer accumulation in the growing vertebral endplates (arrows) and spinous processes (arrowheads) and faintly also in the transverse processes (open arrows). The vertebral bodies in adolescence do not appear square as in adults (Fig. 17A) because ossification is still in progress. B Anteroposterior radiograph identifies the individual vertebrae with the pedicles (p), neural arch (arrowheads), transverse processes (tp) and spinous process (sp) 40 standard posterior scan suffices.

The ilium is indicated by horizontal “hot” plates and the ischium and pubis by vertical “hot” plates. In younger subjects the hip joint proper is totally free of tracer because the cartilaginous layers over the femoral head and acetabulum are relatively thick and the acetabular fossa is still shallow. Amazingly, pinhole scintigraphy can depict the tracer accumulated in the fovea capitis, to which the femoral capital ligament is attached (Fig. 24A). As bones cease to grow, tracer uptake in the fused physeal plates becomes sharply reduced and nearly completely vanishes when bones are fully mature.

Note that the inflamed ankle can be assessed three-dimensionally. The posterior subtalar joint is distinctly visualized (lower arrowheads). C Lateral radiograph showing distension of the articular capsule (arrowheads) (from Bahk et al. 1998a, with permission) trast enhancement. The resolution of planar SPECT, however, is not better (Groch et al. 1995) or rather is degraded compared to that of the planar scan (Collier 1989). The low resolution of SPECT is related to the optical design of the parallel-hole collimator, which primarily focuses on the enhancement of the system’s sensitivity and not so much on the resolution.

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