Acute Appendicitis
Fig. 3.1 Normal anatomy of the appendix on barium enema and CT. Coronal CT reformation of the abdomen demonstrates normal air-filled appendix (curved arrow) medial to the cecum. Normal appendiceal…
Emergency Radionuclide Imaging of the Thorax and Abdomen
Clinical indication Examination Radiopharmaceuticals Typical time to completion Sensitivity Specificity Positive predictive value Negative predictive value References Acute pulmonary embolism V/Q lung scintigraphy Ventilation: 133Xe gas, inhaled, or 99mTc DTPA…
Acute Nontraumatic Imaging in the Liver and Spleen
, Sridhar Shankar1 and Ajay Singh2 (1) Department of Radiology, University of Tennessee, Memphis, TN, USA (2) Department of Radiology, Massachusetts General Hospital, Harvard Medical School, 10 Museum Way, # 524, Boston,…
Imaging of Acute Thoracic Trauma
Fig. 24.1 (a) Pneumomediastinum and pneumothorax. Single frontal chest radiograph from a trauma patient after a gunshot wound reveals air between the epicardium and the pleura on the left (curved…
Imaging of Genitourinary Emergencies
Fig. 7.1 Obstructing left UVJ stone in a 71-year-old male with elevated creatinine and hydronephrosis. (a) Scout view demonstrates a coarse calcification in the left pelvis corresponding to a left…
Imaging of Acute Gynecologic Disorders
Fig. 13.1 Corpus luteal cyst. (a) Sagittal grayscale transabdominal ultrasound image of the pelvis demonstrates a large, cystic lesion (arrow) with relatively homogeneous internal echogenicity and posterior acoustic enhancement. (b)…
Imaging of Acute Conditions of Male Reproductive Organs
Fig. 8.1 Testicular anatomy. (a) Schematic diagram demonstrates normal testicular anatomy. (b) Hydrocele: schematic diagram demonstrates fluid between tunica albuginea and tunica vaginalis Fig. 8.2 Hydrocele and pyocele. (a) Hydrocele:…
Imaging of Acute Obstetric Disorders
Fig. 12.1 Normal pregnancy. (a) Intradecidual sac sign: ultrasound demonstrating a 4-week gestational sac in thickened endometrium, without any identifiable yolk sac or embryo. (b) Double decidual sac sign: ultrasound…
Imaging of Acute Aortic Conditions
Degenerative (most common) Inflammatory (5–10 % of all) Mycotic Syndromes: Marfan’s syndrome, Ehlers-Danlos syndrome Vasculitis: Takayasu’s disease, Behcet’s disease Traumatic Other less frequent etiologies of AAA include mycotic aneurysm, which…
Imaging of Bowel Obstruction
Fig. 5.1 Radiographic findings of small bowel obstruction. (a and b) Upright plain radiograph of the abdomen demonstrates dilated small bowel loops with differential air-fluid levels in a patient with…
