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Outline

Dynamic MR dacryocystography in patients with epiphora

2010, European Journal of Radiology

https://doi.org/10.1016/J.EJRAD.2008.10.022

Abstract

Objective: The purpose of this study was to investigate the diagnostic value of dynamic MRI dacryocystography (dMR-DCG) for the assessment of nasolacrimal drainage system (NLDS). Methods: The study population consisted of 35 patients with a history of epiphora. Each patient underwent bilateral dMR-DCG and conventional dacryocystography (DCG) to assess the NLDS. Two radiologists, who were unaware of the clinical data, evaluated the images separately for the level of obstruction at the nasolacrimal passage and the presence or absence of lacrimal sac dilatation. The findings from the dMRI-DCG and DCG images were compared. DCG was considered to be the gold standard imaging technique. Results: dMRI-DCG had a sensitivity of 90.5% and a specificity of 89.3% to detect nasolacrimal passage. In 24 out of 70 NLDS that were assessed, there was 100% agreement between the dMRI-DCG and DCG images in the detection of the obstructed level in the nasolacrimal pathway. The lacrimal sac dilatation finding detected by DCG was not observed by dMRI-DCG in only two patients, in whom there was a prior history of dacryocystorhinostomy (DCR) operation. These findings suggest that dMRI-DCG has 94.3% sensitivity and 100% specificity for the diagnosis of lacrimal sac dilatation. Conclusion: dMRI-DCG is an easily performed, minimally invasive imaging technique to identify the presence or absence of obstruction and its level, and lacrimal sac dilatation in the evaluation of NLDS. dMRI-DCG does not require the use of contrast material and ionizing radiation and provides functional information by depicting dynamic behaviour. Thus, dMRI-DCG could be useful as a reliable diagnostic imaging technique in many patients prior to surgery.

References (19)

  1. Caldemeyer KS, Stockberger Jr SM, Broderick LS. Topical contrast-enhanced CT and MR dacryocystography: imaging the lacrimal drainage apparatus of healthy volunteers. AJR Am J Roentgenol 1998;171(6):1501-4.
  2. Ewing AE. Roentgen ray demonstration of the lacrimal abscess cavity. Am J Ophtalmol 1909;26:1-4.
  3. Goldberg RA, Heinz GW, Chiu L. Gadolinium magnetic resonance imaging dacry- ocystography. Am J Ophthalmol 1993;115(6):738-41.
  4. Rubin PA, Bilyk JR, Shore JW, Sutula FC, Cheng HM. Magnetic resonance imaging of the lacrimal drainage system. Ophthalmology 1994;101(2):235-43.
  5. Takehara Y, Isoda H, Kurihashi K, et al. Dynamic MR dacryocystography: a new method for evaluating nasolacrimal duct obstructions. AJR Am J Roentgenol 2000;175(2):469-73.
  6. Weber AL, Rodriguez-De Velasquez A, Lucarelli MJ, Cheng HM. Normal anatomy and lesions of the lacrimal sac and duct: evaluated by dacryocystography, computed tomography and MR imaging. Neuroimaging Clin N Am 1996;6: 199-217.
  7. Song HY, Lee CO, Park S, et al. Lacrimal canaliculus obstruction: non-surgical treatment with a newly designed polyurethane stent. Radiology 1996;199(1): 280-2.
  8. Tanenbaum M, Mccord CD. The lacrimal drainage system. In: Tasman W, Jaeger EA, editors. Duane's clinical ophthalmology. Revised edition Philadelphia: Lip- pincott Raven; 1996. p. 12-8.
  9. Manfrè L, de Maria M, Todaro E, Mangiameli A, Ponte F, Lagalla R. MR dacry- ocystography: comparison with dacryocystography and CT dacryocystography. AJNR Am J Neuroradiol 2000;21(6):1145-50.
  10. Ansari SA, Pak J, Shields M. Pathology and imaging of the lacrimal drainage system. Neuroimaging Clin N Am 2005;15(1):221-37.
  11. Amanat LA, Hildtch TE, Kwok CS. Lacrimal cyintigraphy. II. Its role in diagnosis of epiphora. Br J Ophthalmol 1983;67(11):720-8.
  12. Takehara Y, Kurihashi K, Isoda H, et al. Dynamic magnetic resonance dacryocys- tography using half Fourier single shot fast spin echo sequence. Nippon Igaku Hoshasen Gakkai Zasshi 1998;58(9):524-6.
  13. Amrith S, Goh PS, Wang SC. Tear flow dynamics in the human nasolacrimal ducts-a pilot study using dynamic magnetic resonance imaging. Graefes Arch Clin Exp Ophthalmol 2005;243(2):127-31.
  14. Amrith S, Goh PS, Wang SC. Lacrimal sac volume measurement during eyelid closure and opening. Clin Exp Ophthalmol 2007;35(2):135-9.
  15. Zinreich SJ, Miller NR, Freman LN, Glorioso LW, Rosenbaum AE. Computed tomo- graphic dacryocystography using topical contrast media for lacrimal system visualization. Orbit 1990;9:79-87.
  16. Galloway JE, Kavic TA, Raflo GT. Digital subtraction macrodacriocystogra- phy: a new method for lacrimal system imaging. Ophthalmology 1984;91(8): 956-62.
  17. Kassel EE, Schatz CJ. Lacrimal apparatus. In: Som PM, Curtin HD, editors. Head and neck imaging. 3rd ed. St Louis: Mo: Mosby-Year Book; 1995. p. 1129-83.
  18. Yoshikawa T, Hirota S, Sugimura K. Topical contrast-enhanced magnetic reso- nance dacryocystography. Radiat Med 2000;18(6):355-62.
  19. Karagülle T, Erden A, Erden I, Zilelioglu G. Nasolacrimal system: evaluation with gadolinium-enhanced MR dacryocystography with a three-dimensional fast spoiled gradient-recalled technique. Eur Radiol 2002;12(9):2343-8.