Main description:

The rapid growth of fibre-optic endoscopy in recent than 7,500 examinations has been accumulated. years has had two consequences for the radiology of In part I of this study the theoretical background the stomach and the duocienum. and the technique of examination proper are de- scribed. The basic principles of interpretation of DC 1. Radiology has lost its previously rather auton- studies are stated. omous position in this field. Part II deals with the results. Chapter 5 consists of 2. As a result of the constant feed-back from the general remarks on the results, and on the comple- endoscopist, which the radiologist can and should mentary role of radiological examination and endos- have, he is in an excellent position to re-evaluate copy. Chapter 6 deals with a quantative study of and improve his own technique of examination. standard biphasic-contrast examinations in patients The author believes that the radiological exam- over a period of 3 years.
This study was restricted to ination retains its value as a screening technique and malignant lesions, because it is only in this group a complementary method to gastroscopy and biop- that the definite criterion, a histological diagnosis, is sy. Only a sophisticated radiological technique will obtained. The natural history of malignant lesions fulfil these requirements. In 1973 the author devel- also makes follow-up studies possible. Results of the oped a standard examination that was called "bi- diagnosis of Early Gastric Cancer (EGC) are phasic", because it combines the advantages of included.

Contents:

I. Method.- 1. A Brief Review of Radiological Techniques for Examination of the Stomach and Duodenum.- 1.1. Complete filling studies/.- 1.2. Compression studies/.- 1.3. Mucosal relief studies/.- 1.4. Double-contrast (DC) studies/.- 1.5. Hypotonic studies/.- 2. Why is a Standard Biphasic-Contrast Examination Necessary?.- 3. The Standard Biphasic-Contrast Gastric Series.- 3.1. Barium suspension and preparation of bubbly barium/.- 3.2. Premedication/.- 3.3. Technical factors/.- 3.4. Method proper/.- 3.5. Coverage/.- 3.6. Complementary hypotonic duodenography/.- 4. Basic Principles for the Interpretation of Double-Contrast Studies.- II. Results.- 5. General Remarks.- 6. Quantitative Results in the Diagnosis of Malignant Lesions of the Stomach.- 6.1. Introduction/.- 6.2. Methods and materials/.- 6.3. Summary/.- 6.4. Conclusion/.- III. Radiological Atlas of Common Lesions of the Stomach and Duodenum.- 7. Stomach.- 7.1. Normal and abnormal mucosal relief/.- 7.1.1. Normal mucosal relief/.- 7.1.2. Abnormal mucosal relief/.- 7.2. Erosions/.- 7.3. Antral gastritis/.- 7.4. Ulcers/.- 7.5. Benign tumors/.- 7.5.1. Gastric polyps/.- 7.5.2. Leiomyoma/.- 7.5.3. Radiological features/.- 7.6. Carcinomas (including Early Gastric Cancer)/.- 7.7. Malignant tumors other than carcinomas/.- 7.7.1. Malignant lymphoma/.- 7.7.2. Leiomyosarcoma/.- 7.8. Metastatic tumors/.- 7.9. Indentations/.- 7.10. Hiatal hernia and reflux/.- 7.11. Gastric retention/.- 7.12. Miscellaneous/.- 7.12.1. Diverticulum/.- 7.12.2. Corrosion/.- 7.12.3. Heterotopic pancreatic tissue/.- 7.12.4. Pyloric hypertrophy of the adult/.- 7.12.5. Bezoar/.- 7.12.6. Antral diaphragm/.- 7.12.7. Crohn's disease/.- 8. Duodenum.- 8.1. Normal and abnormal mucosal relief/.- 8.1.1. Normal mucosal relief/.- 8.1.2. Abnormal mucosal relief/.- 8.2. Ulcers/.- 8.3. Benign tumors (including tumor-like lesions such as hyperplasia of Brunner's glands, benign lymphoid hyperplasia, heterotopic gastric epithelium, heterotopic pancreatic tissue)/.- 8.4. Malignant tumors/.- 8.5. Enlargement of the major duodenal papilla/.- 8.6. Indentations/.- 8.7. Miscellaneous/.- 8.7.1. Prolapse of gastric mucosa/.- 8.7.2. Prolapse of gastric polyps/.- 8.7.3. Diverticulum/.- 8.7.4. Annular pancreas/.- 8.7.5. Duodenal septum/.- 8.7.6. Crohn's disease/.- 8.7.7. Erosions/.- References.