Imaging Devices
Fig. 10.7. Path of a detector head in rectilinear scanning of an organ. Fig. 10.8. Focusing-type collimator. γ-rays can reach the detector only through the narrow channels…
Methods of Safe Handling of Radionuclides and Pertaining Rules and Regulations
Two-dimensional imaging, even with multiple views, does not provide accurate three-dimensional information concerning radionuclide distribution. Because two-dimensional imaging more or less integrates the information from the third dimension (depth),…
Biological Effects of Radiation and Risk Evaluation from Radiation Exposure
Two-dimensional imaging, even with multiple views, does not provide accurate three-dimensional information concerning radionuclide distribution. Because two-dimensional imaging more or less integrates the information from the third dimension (depth),…
Emission Computed Tomography
Two-dimensional imaging, even with multiple views, does not provide accurate three-dimensional information concerning radionuclide distribution. Because two-dimensional imaging more or less integrates the information from the third dimension (depth),…
Breast Carcinoma: Single Pulmonary and Multiple Lymph-nodal Metastases
Fig. 44.1 Left subclavear adenopathy measuring less than a centimeter In the left para-aortic and celiac-mesenteric areas and hepatic hilum, there are numerous confluent enlarged lymph nodes, characterized by high glucose…
Urothelial Carcinoma of the Bladder and Prostatic Adenocarcinoma: Progression of Disease After Surgery
Fig. 78.1 The PET shows progression of disease due to the presence of a lung metastasis and lymph nodes characterized by increased deposition of FDG Fig. 78.2 The CT shows a solid…
Anaplastic Metastatic Pulmonary Cancer: Follow-Up After Radiotherapy
Fig. 62.1 The MIP image shows metabolic response of the left lung mass but there is a clear progression of disease in all mediastinal and abdominal injuries. Moreover, we find the…
Rectal Adenocarcinoma and Hepatic Metastases: Partial Response to Chemotherapy
Fig. 18.1 PET scan before chemotherapy Absence of pathological metabolism in other body segments examined. 18.4 Conclusions The PET scan shows partial response to treatment, due to persistence of mild metabolic…
Metastatic Gastric Adenocarcinoma: Progression of Disease
Fig. 76.1 The PET scan shows multiple enlarged lymph nodes with high glucose metabolism in the celiac-mesenteric-aortic, left lumbo-aortic regions; bilaterally in the iliac region, even though more pronounced on the…
Locoregional Recurrence of Carcinoma of the Uterus with Lymph Node Metastasis that Determines Lymphedema and Obstructive Hydronephrosis
Fig. 23.1 Presence of some lymph nodes in the left para-aortic region that compress the pyeloureteral junction without causing obstruction (MIP image) 23.4 Conclusions The PET scan shows extended locoregional recurrence…
