The Badgastein Lecture.- The Challenge of the 21st Century.- Neurology, Psychiatry.- First Evaluation in Humans of [123I]PE21: A Selective Radioligand for Visualization of the Striatal Dopamine Transporter Density.- Comparison of Iodine-123 labelled Nor-ss-Cit and ss-Cit as Potential Radioligands for Serotonin Transporter Imaging.- Brain Serotonin and Dopamine Transporters in Depressive Children.- Prognostic Potential of Tc-99m-ECD-SPET within 6 Hours after Onset of Stroke Symptoms.- Brain Perfusion in Patients with Severe Sleep Apnea Syndrome (SAS) before and after n-CPAP-Therapy.- Therapy.- Radioimmunotherapy of Colorectal Cancer in Small Volume Disease: Preclinical Evaluation in Comparison To Equitoxic Chemotherapy and Preliminary Results of an Ongoing Phase-I/II Clinical Trial.- Radioimmunotherapy of Glioblastoma by Using I-131 and Y-90 Labeled Anti-tenascin Monoclonal Antibodies.- I-131-Lipiodol Therapy in Liver Neoplasms.- Individualized Dose Estimation for Sr-89 with the Use of Diagnostic Tc-99m MDP Bone Scintigraphy.- Rhenium-186-HEDP and Strontium-89-Chloride in Treatment of Metastatic Bone Pain.- The Development of Chromatographic 188W/188Re Generators for Therapy.- Radiopharmacology.- Evaluation of mRNA Targeting by Labeled Oligonucleotides for Tumor-Diagnosis.- Synthesis and Evaluation of [123I]-Iodoaminoglutethimide, a Ligand for Visualization of the Aromatase Enzyme by SPECT.- Comparative Analysis of Kinetic Models to Study Glucose Metabolism of the Brain.- Bone Scintigraphy and Palliative Therapy with Multibone Kit.- Pharmaosintigraphic Study of Localization in the G.I. Tract of Controlled Release Tablets Using 153Sm as Marker.- Endocrinology, Thyroid.- On the Use of Routine Preoperative Scintigraphy in Thyroid Carcinoma Patients.- The Value of HMPAO SPECT Scanning in Patients with Congenital Hypothyreosis.- Advanced Stage Thyroid Cancer - Treatment with Isotretinoin.- Is SPECT-Technique Necessary for Preoperative Diagnosis of Parathyroid Adenoma ?.- Oncology, Haematology.- Comparison of Interlesionally and Systemically Administered Radiolabelled Monoclonal Antibodies in Implanted Tumours.- Comparison of MRI and Somatostatin Receptor Scintigraphy (SRS) in Post-surgical Follow-up of Meningioma.- Comparison of Contrast Enhanced MRI, Tc-99m Hydroxymethylene Diphosphonate and Tc-99m Tetrofosmin Scintimammography in Patients with Suspicious Breast Lesions.- Neoadjuvant Treatment of Patients with Breast Cancer under Surveillance of 99mTc-Tetrofosmin Scintigraphy.- 99Tc-Furifosmin Uptake by Melanoma Cells.- Lymphoscintigraphy in Tumors of the Head and Neck Using a Double Tracer Technique.- Clinical PET.- Clinical Application of 18FDG-PET in the Assessment of Head and Neck Tumors.- The Role of FDG-PET and MIBI Investigations in the Restaging of Treated Patients with Malignant Lymphomas.- Assessment of Pulmonary Nodules and Colorectal Cancer Recurrences by FDG Scan on an"Ordinary" Coincidence Gamma Camera (CDET).- Clinical Utility of 18FDG-PET with Molecular Coincidence Detection (MCD) and a Modified SPECT-Camera.- Deoxyglucose Uptake by Apoptosing and Proliferating Colonic Tumour Cells.- Cardiology.- Relation Between Viability, Improvement of LVEF and Heart Failure Symptoms after Revascularization.- Attenuation Corrected Tl-201 SPECT Using a Gd-153 Moving Line Source: Clinical Value and the Impact of Attenuation Correction on the Extent and Severity of Perfusion Abnormalities.- Correlation of EBCT and Tl-201-SPECT Scintigraphy in Patients with Coronary Heart Disease.- Influence of Right Ventricular Stimulation Site on Left Ventricular Function in a Trial Synchronous Pacing.- Varia.- 153Sm-EDTMP for Pain Relief in Malignant and Benign Bone and Joint Diseases.- Tc-99m-Tetrofosmin SPECT Scintigraphy in the Post-operative Follow-up of Microvascular Anastomosed Flaps in Facial Reconstruction.- Long-Term Follow-up Study of Gastric Emptying and Helicobacter Pylori Eradication among Patients with Functional Dyspepsia.- The Valu