Imaging of Acute Appendicitis in Adults and Children [recurso electrónico

This book is a comprehensive account of imaging of acute appendicitis and other appendiceal diseases. Background information is first provided on clinical presentation, perforation and negative appendectomy rates, and treatment options. The role of each imaging modality – radiography, ultrasound, CT, and MRI – is then considered separately in adults and children with suspected acute appendicitis. Many high-quality illustrations are included, and detailed information is provided on appropriate protocols and radiation saving. Further chapters addresses the spontaneously resolving and chronic appendicitis as well as other appendiceal lesions and review the findings of evidence-based medicine and cost-effectiveness analyses. Emergency physicians, pediatricians, surgeons, and radiologists will all find this book to be an excellent source of information and guidance. Front Matter....Pages i-ix Historical Background, Anatomy and Function, Etiology and Epidemiology....Pages 3-9 Clinical Presentation of Acute Appendicitis: Clinical Signs—Laboratory Findings—Clinical Scores, Alvarado Score and Derivate Scores....Pages 13-21 Appendicitis Perforation Rates and Time Interval between Symptom Onset and Surgery....Pages 23-33 Negative Appendectomy Rate and Implications of Removing a Normal Appendix....Pages 35-43 Laparoscopy and Laparotomy....Pages 45-56 Treatment of Appendiceal Perforation....Pages 57-66 Imaging of Acute Appendicitis in Adults: Radiography....Pages 69-75 Imaging of Acute Appendicitis in Adults: Ultrasonography....Pages 77-95 Imaging of Acute Appendicitis in Adults: Computed Tomography....Pages 97-109 Ultrasonography Versus Computed Tomography: Evidence-Based Imaging....Pages 111-116 Imaging of Acute Appendicitis in Adults: MRI....Pages 117-130 Imaging of Acute Appendicitis in Adults: Current Practices in Pregnant Women....Pages 131-139 Imaging of Acute Appendicitis in Children: Radiography....Pages 143-150 Imaging of Acute Appendicitis in Children: Ultrasonography....Pages 151-163 Imaging of Acute Appendicitis in Children: Computed Tomography Including Radiation Issues....Pages 165-175 US Versus CT: Evidence-Based Medicine and Cost-Effectiveness in Imaging Acute Appendicitis in Children....Pages 177-182 Imaging of Acute Appendicitis in Children: MRI....Pages 183-187 Spontaneously Resolving and Chronic Appendicitis....Pages 191-197 Imaging of Primary Appendiceal Neoplasms....Pages 199-219 Impact of Imaging on Negative Appendectomy Rate....Pages 221-232 Radiation Dose from MDCT Examinations for Suspected Acute Appendicitis....Pages 233-247 Summary and Perspectives....Pages 251-252 Back Matter....Pages 253-256 Imaging is increasingly used in patients suspected of having acute appendicitis in order to reduce the rates of perforation and negative appendectomy and to detect alternative diagnoses. As many of these patients are young, radiation dose is of particular concern. Numerous studies have therefore investigated reduction of the radiation dose delivered by CT and whether ultrasound may be a preferable option, depending on age and gender. It is also recognized that MRI can be invaluable in certain patients, such as pregnant women, though it is difficult to use in emergency settings. This book is a comprehensive account of imaging of acute appendicitis and other appendiceal diseases. Background information is first provided on clinical presentation, perforation and negative appendectomy rates, and treatment options. The role of each imaging modality is then considered separately in adults and children with suspected acute appendicitis. Many high-quality illustrations are included, and detailed information is provided on appropriate protocols and radiation saving. Further chapters addresses the spontaneously resolving and chronic appendicitis as well as other appendiceal lesions, and review the findings of evidence-based medicine and cost-effectiveness analyses. Emergency physicians, pediatricians, surgeons, and radiologists will all find this book to be an excellent source of information and guidance This comprehensive reference offers extensive background information, and considers each modality - radiography, ultrasound, CT, and MRI - separately in adults and children. Coverage includes protocols, advice on radiation saving and many high-quality images