Double-contrast Barium Enema Study with Computed Radiography: Assessment in Detection of Colorectal Polyps

Overview

Journal J Digit Imaging

Publisher Springer

Specialties Medical Informatics
Radiology

Date 1994 Aug 1

PMID 7948175

Authors

Y Okada

S Kusano

T Endo

Affiliations

Soon will be listed here.

Abstract

Feasibility and diagnostic performance of digital radiography in gastrointestinal imaging have not been fully investigated. We performed double-contrast barium enema study with computed radiography (CR-DCBE) on a routine basis, and the efficacy of this system for detection of colorectal polyps was investigated. The files of 76 patients, who had undergone both CR-DCBE and colonoscopy, were reviewed by two observers who were blinded to the colonoscopic findings. The radiation dose of CR-DCBE was reduced to 50% of conventional film-screen system. By using colonoscopic findings as a reference, the sensitivity and positive predictive value for colorectal polyps were 66% to 71% and 32% to 41%, respectively. There was no significant interobserver difference. The use of postprocessing with gray-scale reversal and edge enhancement did not significantly improve the results. The sensitivity for polyps smaller than 1 cm was comparable with published data of conventional film-screen systems. Our preliminary results show that CR-DCBE has an acceptable sensitivity for detection of colorectal polyps. It is suggested that the use of CR is a promising approach to digital gastrointestinal radiography.

References

Macmahon H, Vyborny C, Metz C, Doi K, Sabeti V, Solomon S . Digital radiography of subtle pulmonary abnormalities: an ROC study of the effect of pixel size on observer performance. Radiology. 1986; 158(1):21-6. DOI: 10.1148/radiology.158.1.3940383. View

Takahashi M, Ueno S, Yoshimatsu S, Higashida Y, Tsuchigame T, Ito K . Gastrointestinal examinations with digital radiography. Radiographics. 1992; 12(5):969-78. DOI: 10.1148/radiographics.12.5.1529137. View

Fork F . Double contrast enema and colonoscopy in polyp detection. Gut. 1981; 22(11):971-7. PMC: 1419466. DOI: 10.1136/gut.22.11.971. View

Rex D, Lehman G, Lappas J, Miller R . Sensitivity of double-contrast barium study for left-colon polyps. Radiology. 1986; 158(1):69-72. DOI: 10.1148/radiology.158.1.3940401. View

Thoeni R, Menuck L . Comparison of barium enema nad colonoscopy in the detection of small colonic polyps. Radiology. 1977; 124(3):631-5. DOI: 10.1148/124.3.631. View

Carr J, Reed J, Choplin R, Pope Jr T, Case L . Plain and computed radiography for detecting experimentally induced pneumothorax in cadavers: implications for detection in patients. Radiology. 1992; 183(1):193-9. DOI: 10.1148/radiology.183.1.1549671. View

Sonoda M, Takano M, Miyahara J, Kato H . Computed radiography utilizing scanning laser stimulated luminescence. Radiology. 1983; 148(3):833-8. DOI: 10.1148/radiology.148.3.6878707. View

Fisher P, Brauer G . Impact of image size on effectiveness of digital imaging systems. J Digit Imaging. 1989; 2(1):39-41. DOI: 10.1007/BF03168014. View

Schaefer C, Prokop M, Oestmann J, WIESMANN W, Haubitz B, Meschede A . Impact of hard-copy size on observer performance in digital chest radiography. Radiology. 1992; 184(1):77-81. DOI: 10.1148/radiology.184.1.1609106. View

10.

Dwyer A . Matchmaking and McNemar in the comparison of diagnostic modalities. Radiology. 1991; 178(2):328-30. DOI: 10.1148/radiology.178.2.1987587. View

11.

Ott D, Chen Y, Gelfand D, Wu W, Munitz H . Single-contrast vs double-contrast barium enema in the detection of colonic polyps. AJR Am J Roentgenol. 1986; 146(5):993-6. DOI: 10.2214/ajr.146.5.993. View

12.

Wegryn S, Piraino D, Richmond B, Schluchter M, Uetani M, Freed H . Comparison of digital and conventional musculoskeletal radiography: an observer performance study. Radiology. 1990; 175(1):225-8. DOI: 10.1148/radiology.175.1.2315485. View

13.

Hillman B, Fajardo L . Clinical assessment of phosphor-plate computed radiography: equipment, strategy, and methods. J Digit Imaging. 1989; 2(4):220-7. DOI: 10.1007/BF03170409. View

14.

Krug B, Steinbrich W, Lorenz R, Glathe S, Dietlein M, Schirrmeister J . [Colonic contrast enema in digital luminescent radiography (DLR) and conventional x-ray technic]. Rofo. 1990; 152(2):131-6. DOI: 10.1055/s-2008-1046838. View

15.

Kastan D, ACKERMAN L, Feczko P . Digital gastrointestinal imaging: the effect of pixel size on detection of subtle mucosal abnormalities. Radiology. 1987; 162(3):853-6. DOI: 10.1148/radiology.162.3.3809504. View

16.

Thoeni R, Petras A . Double-contrast barium-enema examination and endoscopy in the detection of polypoid lesions in the cecum and ascending colon. Radiology. 1982; 144(2):257-60. DOI: 10.1148/radiology.144.2.7089277. View

17.

Schaefer C, Greene R, Hall D, Lindemann S, Llewellyn H, McCarthy K . Mediastinal abnormalities: detection with storage phosphor digital radiography. Radiology. 1991; 178(1):169-73. DOI: 10.1148/radiology.178.1.1984298. View