From Big Medical Encyclopedia

DAKRIOTSISTOGRAFIYA (Greek dakryon a tear + kystis a bubble, a bag + grapho to write, represent) — a radiological method of a research of slezootvodyashchy ways using a contrast agent.

Fig. 1. The scheme of a dakriotsistogramma of the healthy person (in a frontonasal projection): 1 — frontal sinuses; 2 — orbits; 3 — cells of a trellised labyrinth; 4 — the lacrimal tubules; 5 — dacryocysts; 6 — nasolacrimal channels; 7 — Highmore's bosoms; 8 — the nasal courses (dacryocysts and nasolacrimal channels are filled with a contrast agent).
Fig. 2. Dakriotsistogramma. In the drawing at the left a picture of a chronic dacryocystitis: the dacryocyst and the channel are expanded, the nasal opening is partially corked. On the right without changes (dacryocysts and nasolacrimal channels are filled with a contrast agent).

To it was offered an amer. the ophthalmologist Ewing (A. E. Ewing) in 1909 for assessment morfol, changes of the lacrimal tubules, a dacryocyst, the nasolacrimal channel and detection of passability of slezootvodyashchy ways.

Method it is shown at delay or a delay of lacrimation through the lacrimal tubules and the nasolacrimal channel or existence a wedge, symptoms of their pathology.

Technique of a research

After local anesthesia of the lacrimal ways of 0,5% solution of Dicainum expand the lacrimal opening with the conic probe and in lower or (at its fusion) enter a catheter or directly a cannula into an upper lacrimal tubule 1 — the 2-gram syringe. The lacrimal ways wash out fiziol, solution, then enter 0,5 ml into them liquid Iodolipolum and, Urotrastum or other contrast agents. After contrasting do a X-ray analysis in mental and nasal and side projections; additional information can be obtained during the shooting in frontonasal and axial projections (see. Radiodiagnosis ).

On dakriotsistogramma consider the image of orbits, frontal, trellised, genyantrums and their pnevmatization, a condition of a nasal cavity and its bone walls. Then investigate all parts of slezootvodyashchy ways — the lacrimal tubules, dacryocysts and nasolacrimal channels (fig. 1 and 2), define their arrangement, size, a form, outlines, localization of strictures, an arrangement and the course of fistulas and a functional state (the moment of emergence of a contrast agent in nasal cavities, time of emptying of ways, the roughness of outlines caused by inflammatory swelling of a mucous membrane or growth of granulations, existence of expansion and diverticular protrusions).

Can be applied to clarification of localization of a nasolacrimal anastomosis, its passability and a condition of a dacryocyst later dacryocystorhinostomies (see). Repeated pictures in 1 — 2 hour allow to judge function of slezootvodyashchy way which normal are cleared by this time from a contrast agent.

Bibliography: Itsikson L. Ya. and Weinstein E. S. Use of rentgenovy beams in diagnosis and treatment of eye diseases, M., 1961, bibliogr.; Lindenbraten L. D. Technique of studying of x-ray films, M., 1971; Radnot M. and Gaul Y. Radiodiagnosis of diseases of slezootvodyashchy ways, the lane with it., Budapest, 1969, bibliogr.; Ewing A. E. Roentgenradiodemonstration of the lacrimal abscess cavity, Amer. J. Ophthal., v. 24, p. 1, 1909.

L. A. Yudin.