References
- Bray J. F. The “inverted V” sign of pneumoperitoneum. Radiology 1984; 151: 45
- Bulas D. I., Taylor G. A., Eichelberger M. R. The value of CT in detecting bowel perforation in children after blunt abdominal trauma. AJR 1989; 153: 561
- Catalano O., Grassi R., Rotondo A. Abdominal free air. Ultrasonographic assessment. Radiol. Med. 1994; 87: 632
- Cho K. C., Baker S. R. Air in the fissure for the ligamentum teres. New sign of intraperitoneal air on plain radiographs. Radiology 1991; 178: 489
- Coleman J. A., Denham M. J. Perforation of the peptic ulceration in the elderly. Age Ageing 1980; 9: 257
- Earls J. P., Dachman A. H., Colon E., Garrett M. G., Molloy M. Prevalence and duration of postoperative pneumoperitoneum. Sensitivity of CT vs left lateral decubitus radiography. AJR 1993; 161: 781
- Fultz P. A., Skucas J., Weiss S. L. CT in upper gastrointestinal tract perforations secondary to peptic ulcer disease. Gastrointest. Radiol. 1992; 17: 5
- Glazer G. M., Buy J. N., Moss A. A., Goldberg H. I., Federle M. P. CT detection of duodenal perforation. AJR 1981; 137: 33
- Grassi R., Catalano O., Pinto A., Fanucci A., Rotondo A., Di Mizio R. Case report. Identification of the transverse mesocolon and root of small bowel mesentery. A new sign of pneumoperitoneum. Br. J. Radiol. 1996; 69: 774
- Grassi R., Di Mizio R., Pinto A., Cioffi A., Romano L., Rotondo A. Comparative adequacy of conventional radiography, ultrasonography and computed tomography in sixty-one consecutive patients with gastrointestinal perforation. Radiol. Med. 1996; 91: 747
- Hajdu N., De Lacey G. The Rutherford-Morison pouch. A characteristic appearance on abdominal radiographs. Br. J. Radiol. 1970; 43: 706
- Han S. V. Variations in falciform ligaments with pneumoperitoneum. J. Can. Assoc. Radiol. 1980; 31: 171
- Haswell D. M., Berne A. S., Schneider B. Plain film recognition of the ligamentum teres hepatis. Radiology 1975; 114: 263
- Hofer G. A., Cohen A. J. CT signs of duodenal perforation secondary to blunt abdominal trauma. J. Comput. Assist. Tomogr. 1989; 13: 430
- Jeffrey R., Federle M. P., Wall S. Value of CT in detecting occult gastrointestinal perforation. J. Comput. Assist. Tomogr. 1983; 7: 825
- Jelaso D. V., Schultz E. H. The urachus - an aid to the diagnosis of pneumoperitoneum. Radiology 1969; 92: 295
- Levine M. S., Scheiner J. D., Rubesin S. E., Laufer I., Herlinger H. Diagnosis of pneumoperitoneum on supine abdominal radiographs. AJR 1991; 156: 731
- Maull K. I., Reath D. B. Pneumogastrography in the diagnosis of perforated peptic ulcer. Am. J. Surg. 1984; 148: 340
- Menuck L., Siemers P. T. Pneumoperitoneum. Importance of right upper quadrant features. AJR 1976; 127: 753
- Miller R. E. Perforated viscus in infant. A new roentgen sign. Radiology 1960; 74: 65
- Miller R. E., Nelson S. W. The roentgenologic demonstration of tiny amounts of free intraperitoneal gas. Experimental and clinical studies. AJR 1971; 112: 574
- Millitz K., Moote D. J., Sparrow R. K., Girotti M. J., Holliday R. L., McLarty T. D. Pneumoperitoneum after laparoscopic cholecystectomy. Frequency and duration as seen on upright chest radiographs. AJR 1994; 163: 837
- Mindelzun R. E., McCort J. J. The cupola sign of pneumoperitoneum in the supine patient. Gastrointest. Radiol. 1986; 11: 283
- Nelson S. W. Extraluminal gas collections due to disease of the gastrointestinal tract. AJR 1972; 115: 225
- Nichols G. B. The prone position in the roentgenological diagnosis of free intra-abdominal gas. AJR 1950; 64: 778
- Nirapathpongporn S., Osatavanichvong K., Udompanich O., Pakanan P. Pneumoperitoneum detected by ultrasound. Radiology 1984; 150: 831
- Pendergrass E. P., Kirk E. Significance of gas under the right dome of the diaphragm with discussion of hepatoptosis. AJR 1929; 22: 238
- Phatak M. G., Frank S. J., Ellis J. J. Computed tomography of bowel perforation. Gastrointest. Radiol. 1984; 9: 133
- Ranschaert E., Rigants H. Confined gastric perforation. US and CT diagnosis. Abdom. Imaging 1993; 18: 313
- Stapakis J. C., Thickman D. Diagnosis of pneumoperitoneum. Abdominal CT vs upright chest film. J. Comput. Assist. Tomogr. 1992; 16: 713
- Walker L. A., Weens H. S. Radiological observations on the lesser peritoneal sac. Radiology 1963; 80: 727
- Weiner C. I., Diaconis J. N., Dennis J. M. The “inverted V”. A new sign of pneumoperitoneum. Radiology 1973; 107: 47
- Woodring J. H., Heiser J. H. Detection of pneumoperitoneum on chest radiographs. Comparison of upright lateral and posteroanterior projection. AJR 1995; 165: 45