Download A patient's guide to medical imaging by Eisenberg R., Margulis A. PDF

By Eisenberg R., Margulis A.

Clinical imaging now performs an important function in prognosis, number of treatment, and follow-up. although, sufferers are frequently intimidated by means of the a number of imaging modalities to be had, the symptoms for his or her use, the enforcing apparatus, what the examinations are like and the way lengthy they final, and the benefits and drawbacks of varied strategies. This e-book is designed to supply motives for those and different concerns for you to relieve the various anxiousness concerning clinical imaging reviews.

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However, the demonstration of abnormalities within these structures requires sharp detail of their inner walls, which can only be 48 A PATIENT’S GUIDE TO MEDICAL IMAGING Figure 2-17. Crohn’s disease. Single-contrast small bowel series shows a characteristic pattern of multiple areas of severe narrowing (string sign) separated by normal segments (skip lesions). produced by coating them with barium or a combination of barium and air (or methylcellulose). How Do I Prepare for a Small Bowel Series?

What Are the Advantages and Disadvantages of an Upper GI Series Compared with Endoscopy? Advantages • Extremely safe and noninvasive • No need for sedation Disadvantages • Less sensitive than endoscopy for demonstrating small areas of ulceration or irritation of the lining of the esophagus (esophagitis) and stomach (gastritis), as well as small tumors • If an abnormality is found during an upper GI series, it can only be removed or biopsied on endoscopy Risks of the Procedure Although an upper GI series is generally a safe procedure, the following rare complications can occur: • Constipation or fecal impaction if the barium is not completely eliminated from the body; therefore, a person with a known GI obstruction should not have an upper GI series • Leakage of barium into the abdomen through a perforated ulcer Small Bowel Series What Is a Small Bowel Series?

Pneumothorax. The right hemithorax is filled with free air and there are no markings within the right lung, which is completely collapsed (arrows). 26 A PATIENT’S GUIDE TO MEDICAL IMAGING Figure 2-4. Fracture. Frontal view of the ankle shows an oblique fracture of the fibula (arrow). Your physician may order a bone radiograph if your clinical symptoms suggest such conditions as: • Fracture of dislocation (trauma) (Fig. 2-4) • Arthritis (Fig. 2-5) • Infection of a bone (osteomyelitis) or joint (septic joint) • Scoliosis (abnormal curvature of the spine) • Bone tumor • Follow-up of fracture healing or joint replacement surgery Your physician may order an abdominal radiograph if your clinical symptoms suggest such conditions as: • Intestinal obstruction (Fig.

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