330 likes | 469 Views
THE FRONTIERS OF MEDICAL IMAGING FERRUCCIO FAZIO IBFM CNR, UNIVERSITY OF MILANO BICOCCA, H S. RAFFAELE, MILANO. IN VIVO MEDICAL IMAGING. X RAYS ULTRASOUND X RAYS COMPUTED TOMOGRAPHY CT MAGNETIC RESONANCE MR POSITRON EMISSION TOMOGRAPHY PET. HELICAL MULTI-SLICE CT.
E N D
THE FRONTIERS OF MEDICAL IMAGING FERRUCCIO FAZIO IBFM CNR, UNIVERSITY OF MILANO BICOCCA, H S. RAFFAELE, MILANO
IN VIVO MEDICAL IMAGING • X RAYS • ULTRASOUND • X RAYS COMPUTED TOMOGRAPHY CT • MAGNETIC RESONANCE MR • POSITRON EMISSION TOMOGRAPHY PET
HELICAL MULTI-SLICE CT Solid State Detectors Ultra Fast Ceramics - Improved Temporal Resolution - Improved Axial Resolution - Wider Anatomical Coverage
SINGLE-SLICE CT 1 sec/revolution
HELICAL MULTI-SLICE CT 16 SLICES 0.4 sec/revolution 1.25 slice thickness 1000 images/whole body study
HELICAL MULTI-SLICE CT CARDIAC IMAGING
BOLD Gd PERFUSION DIFFUSION/ PERFUSION MORPHOLOGY FUNCTION MR MR ANGIOGRAPHY FLOW CHEMICAL CONTENT MR SPECTROSCOPY in vivo
MAGNETIC RESONANCE ANGIOGRAPHY FAST GRADIENT ECHO DIGITAL ANGIOGRAPHY MR ANGIOGRAPHY Acute pulmonary embolism
MAGNETIC RESONANCE DIFFUSION/PERFUSION IMAGINGECHO PLANAR SEQUENCES T2 weighted image DIFFUSION weighted image PERFUSION weighted image Acute trombosis of the left carotid artery.
30000 250 450 25000 400 PET/CT PET 200 Total 350 Expon. (Total) 20000 300 150 Nr. exams 250 PET or PET/CT 15000 Total PET scanners 200 100 10000 150 100 50 5000 50 0 0 0 1995 1996 1997 1998 1999 2000 2001 2002 1999 2000 2001 2002 Year Year ESTIMATED PET - PET/CT SCANNER UNITS WW CLINICAL PET IN ITALY TOTAL EXAMS/YEAR
18F-FDG WHOLE BODY PET • DIAGNOSIS • STAGING • RE-STAGING AND FOLLOW-UP • RADIOTHERAPY
ADVANCES IN PET IMAGING RADIOCHEMISTRY INSTRUMENTATION HW/SW PET + PROTEOMICS/FUNCTIONAL GENOMICS NEW TRACERS PET NEW SCINTILLATION CRYSTALS PET/CT
[18F]FDG Glucose metabolism [18F]FESP D2 and 5-HT2 receptor antagonist [15O]H2O Cerebral flow, Studi attivazione funzionale [13N]AMMONIA Myocardial flow m-[11C]hydroxyefedrine Adrenergic antagonist [11C]FLUMAZENIL Benzodiazepine receptor antagonist [11C]RACLOPRIDE Dopamine D2 receptor antagonist [11C]FE-b-CIT Dopamine reuptake inhibitor [11C]SCH23390 Dopamine D1 receptor antagonist [11C]CARAZOLOL Adrenergic b1/b2 receptor antagonist [11C]MCN5652 Serotonin reuptake inhibitor [11C]MDL100907 Serotonin 5-HT2A receptor antagonist [11C]methylcoline Prostate Cancer [11C]FLUVOXAMINE Serotonin reuptake inhibitor [11C]CGP62349 GABAB antagonist [11C]isovaleroil-L-carnitine Cerebral metabolism [11C]PNU167760 Serotonin 5-HT1A receptor antagonist [11C] BISOPROLOL Adrenergic b1 antagonist [11C] ICI118551 Adrenergic b2 receptor antagonista [11C] OLANZAPINE Atypical Antipsychotic [11C] SB235753 Dopamine D4 receptor antagonist [11C] E2020 Muscarinic M2 receptor antagonist [11C] SCH442416 Adenosine A2A receptor antagonist [11C] PALMITATE Fatty acids metabolism [11C]A 84543 Nicotine a2b4 antagonist [11C]VC195 Peripheral Benzodiazepine [11C]VC193M Peripheral Benzodiazepine [11C]VC198M Peripheral Benzodiazepine [11C] WAY100635 Serotonin 5-HT1A receptor antagonist [11C]RN5 Adrenergic a1 receptor antagonist [11C] VA100 Opioid K1 receptor antagonist [11C] CARFENTANIL Opioid m receptor agonist [11C] ZOFENOPRIL ACE inhibitor [18F]FLUORO CAPTOPRIL ACE inhibitor [11C] CNR1 a1 adrenergic antagonist [11C] PK1113195 Peripheral Benzodiazepine [11C] F167 s2 receptor antagonist [11C] PD60 dopamine D3 antagonist [11C] PD78 dopamine D3 antagonist RADIOTRACERS PREPARED AT HSR
[18F]FDG-PET [11C]Choline-PET [99mTc]MDP B.P. 65 yrs PSA: 1,9 ng/ml PROSTATE CANCER
TRACERS for TUMOR CHARACTERIZATION • Glucose metabolism [18F]FDG • Membrane function [11C]Choline • Proliferation [18F]FLT [18F]FMISO • Hypoxia [18F]FAZA [64Cu]ATSM • Apoptosis [18F]Annexin V • Angiogenesis [18F]NGR-peptide • Neuroendocrine tumors [110In]Octreotate
ADVANCES IN PET IMAGING RADIOCHEMISTRY INSTRUMENTATION HW/SW PET + PROTEOMICS/FUNCTIONAL GENOMICS NEW TRACERS PET NEW SCINTILLATION CRYSTALS PET/CT
FUTURE DEVELOPMENTS IN PET CURRENT DETECTORS: BGO, GSO, LSO • NEW DETECTORS with: • SMALLER SIZE (2-3 mm) • GOOD ENERGY RESOLUTION • DEPTH OF INTERACTION INFORMATION SANDWICH OF DETECTORS • FASTER DETECTORS for • HIGH COUNT RATE CAPABILITY • TIME OF FLIGHT INFORMATION
ADVANCES IN PET IMAGING RADIOCHEMISTRY INSTRUMENTATION HW/SW PET + PROTEOMICS/FUNCTIONAL GENOMICS NEW TRACERS PET NEW SCINTILLATION CRYSTALS PET/CT
PET PET – [18F]FDG LACK OF ANATOMICAL INFORMATION
PET CT PET/CT PET – [18F]FDG ANATOMICAL INFORMATION
PET/CT CT PET
18F-FDG PET/CT HSR MILANO
PET/CT - APPLICATIONS • ANATOMICAL LOCALIZATION OF PET FUNCTIONAL IMAGES • PET/CT GUIDED RADIOTHERAPY TREATMENT PLANNING
METABOLICALLY AIMED RADIOTHERAPY (MART) CT PET TREATMENT PLAN CT BASED PET/CT BASED
METABOLLICALLY AIMED RADIOTHERAPY MART PET/CT GUIDED RADIOTHERAPY PLANNING PET/CT VOLUME DEFINITION OPTIMIZED TREATMENT
TOMOTHERAPY LUNG SIMULATION MD Anderson Houston
TREATMENT UNDER RESPIRATION CONTROL 4D PET/CT Respiration control during PET/CT Target volume with precise motion information
METABOLLICALLY AIMED RADIOTHERAPY MART PET GUIDED IMRT/TOMOTHERAPY IMPROVED TUMOR/NON TUMOR RADIATION DOSE HYPO-FRACTIONATION 30-40 5-10 fractions
ADVANCES IN PET IMAGING RADIOCHEMISTRY INSTRUMENTATION HW/SW PET + PROTEOMICS/FUNCTIONAL GENOMICS NEW TRACERS PET NEW SCINTILLATION CRYSTALS PET/CT
THE PROTEOMICS OF PET:IDENTIFICATION OF NEW TUMOR MARKERS • At present, tumor markers (CEA, PSA ....) are inadequate for early diagnosis and restaging • Functional proteomics (on human tumor specimens) may identify new markers • The new markers identified can be validated for assessemnt of early diagnosis or follow-up (re-staging) Patients selection criteria for PET and current tracers (FDG, Choline) Development of new radiotracers for PET imaging