Digital tomosynthesis for detection of ingested foreign objects in the emergency department: a case of razor blade ingestion
A 46-year-old schizophrenic male presented to the emergency department (ED) after deliberate ingestion of an undetermined number of open razor blades. Abdominal radiograph revealed one razor blade but raised suspicion of a second blade which was subsequently confirmed by digital tomosynthesis (DTS), seen as two razor blades superimposed upon each other placed at slightly different angles. A careful search was made during endoscopy and the two razor blades were retrieved from the stomach and duodenum, respectively. This case illustrates the use of digital tomosynthesis as a smart, timely, cost-effective, and low-dose alternative to conventional computed tomography (CT) that can be conveniently employed in the ED for foreign body localization.
KeywordsDigital tomosynthesis Foreign body ingestion Abdominal X-ray Razor blade
We thank Jeffrey Dunnam and Jeff Fox, Lead Technologists, Emergency Radiology, Harborview Medical Center, for generously assisting in the preparation of some of the images and related technical parameters for this article.
Compliance with ethical standards
Conflict of interest
The authors declare that they have no conflict of interest.
- 6.Johansen A, Conners GP, Lee J, Robinson AL, Chew WL, Chan SS (2018) Pediatric esophageal foreign body: possible role for digital tomosynthesis. Pediatric Emerg Care. https://doi.org/10.1097/PEC.0000000000001517
- 8.Liu S, Wang H, Feng W, Hu X, Guo J, Shang Q, Li Z, Yu H (2018) The value of X-ray digital tomosynthesis in the diagnosis of urinary calculi. Exp Ther Med 15(2):1749–1753Google Scholar
- 9.Mermuys K, De Geeter F, Bacher K, Van De Moortele K, Coenegrachts K, Steyaert L, Casselman JW (2010) Digital tomosynthesis in the detection of urolithiasis: diagnostic performance and dosimetry compared with digital radiography with MDCT as the reference standard. AJR Am J Roentgenol 195(1):161–167CrossRefGoogle Scholar
- 10.Koyama S, Aoyama T (2010) Radiation dose evaluation in tomosynthesis and C-arm cone-beam CT examinations with an anthropomorphic phantom. Am Assoc Phys Med 37:4298–4306Google Scholar