Book contents
- Frontmatter
- Contents
- Contributors
- Foreword
- Preface
- Part I General concepts of PET and PET/CT imaging
- Part II Oncologic applications
- Chapter 5 Brain
- Chapter 6 Head, neck, and thyroid
- Chapter 7 Lung and pleura
- Chapter 8 Esophagus
- Chapter 9 Gastrointestinal tract
- Chapter 10 Pancreas and liver
- Chapter 11 Breast
- Chapter 12 Cervix, uterus, and ovary
- Chapter 13 Lymphoma
- Chapter 14 Melanoma
- Chapter 15 Bone
- Chapter 16 Pediatric oncology
- Chapter 17 Malignancy of unknown origin
- Chapter 18 Sarcoma
- Chapter 19 Methodological aspects of therapeutic response evaluation with FDG-PET
- Chapter 20 FDG-PET/CT-guided interventional procedures in oncologic diagnosis
- Index
- References
Chapter 9 - Gastrointestinal tract
from Part II - Oncologic applications
Published online by Cambridge University Press: 05 September 2012
- Frontmatter
- Contents
- Contributors
- Foreword
- Preface
- Part I General concepts of PET and PET/CT imaging
- Part II Oncologic applications
- Chapter 5 Brain
- Chapter 6 Head, neck, and thyroid
- Chapter 7 Lung and pleura
- Chapter 8 Esophagus
- Chapter 9 Gastrointestinal tract
- Chapter 10 Pancreas and liver
- Chapter 11 Breast
- Chapter 12 Cervix, uterus, and ovary
- Chapter 13 Lymphoma
- Chapter 14 Melanoma
- Chapter 15 Bone
- Chapter 16 Pediatric oncology
- Chapter 17 Malignancy of unknown origin
- Chapter 18 Sarcoma
- Chapter 19 Methodological aspects of therapeutic response evaluation with FDG-PET
- Chapter 20 FDG-PET/CT-guided interventional procedures in oncologic diagnosis
- Index
- References
Summary
Introduction
In this chapter, the approach to gastrointestinal tumors will be discussed. Here we limit ourselves to colorectal cancer (CRC), stomach or gastric cancer, and GIST (gastrointestinal stromal tumor) sarcoma. Chapter 8 expands on esophageal cancer. Pancreas, liver, and biliary tract malignancies are discussed in Chapter 10.
Advances in diagnostic imaging technology have improved establishing the diagnosis, staging and restaging of disease, and monitoring response to therapy. Various imaging modalities are available for this purpose, including the anatomical, e.g., radiography, computed tomography (CT), sonography (US), magnetic resonance imaging (MRI), and functional modalities such as molecular imaging, radioimmuno- and receptor scintigraphy, and magnetic resonance spectroscopy.
Conventional diagnostic methods have limited accuracy in early detection of primary as well as recurrent CRC and gastric carcinoma. Assessment of disease extent or tumor burden is necessary for proper patient selection for surgery with curative intent, or stratification to chemotherapy and/or radiation treatment for patients with advanced disease. Appropriate non-invasive staging plays a pivotal role in patient management. Integrated modalities such as positron emission tomography/ computed tomography (PET/CT) have changed the current work-up of patients with cancer (1). Some refer to these combined gantries as dual, multimodality or hybrid imaging systems.
- Type
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- Information
- A Case-Based Approach to PET/CT in Oncology , pp. 201 - 241Publisher: Cambridge University PressPrint publication year: 2012