Computed tomographic dacryocystography in children undergoing balloon dacryoplasty

Limongi, Roberto; Magacho, Leopoldo; Matayoshi, Suzana; Carneiro, Haroldo Maciel; Ávila, Marcos Pereira de

doi:10.1016/j.jaapos.2012.07.001

Cited by 16 publications

(11 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Its main function is tear drainage. Due to the diverse bone structure of different individuals, the shape, size, and localization of the NLD may vary (9)(10)(11). CT is an imaging modality that can reveal the structure and pathological changes in the NLD.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Anatomical Parameters of Nasolacrimal Duct Evaluated by Computed Tomography in Healthy Children

Altınkaynak¹

2019

Beyoglu Eye J

View full text Add to dashboard Cite

This study is an evaluation of anatomical parameters at different levels of the bony nasolacrimal duct (NLD) in healthy children of different age groups using computed tomography (CT) measurements. Methods: Bony NLD CT images of 289 patients aged 0-15 years who presented at the emergency department with various indications and underwent a brain CT scan were retrospectively evaluated. The anterior-posterior and transverse diameter at the inferior orbital margin, the narrowest diameter of the NLD, NLD length, and the orientation angle in the sagittal plane (the angle between the line connecting the distal and proximal ends of the NLD and a line drawn parallel to the nasal floor) were analyzed by age group. Results: The anterior-posterior and transverse diameters at the level of the inferior orbital margin and the NLD length recorded in sagittal CT images were statistically significantly greater in patients older than 5 years of age (p<0.05). While there was an increase in the narrowest diameter of the NLD beginning at the age of 3 years, it was not statistically significant (p=0.25). The degree of the angle between the central line and the nasal floor did not change significantly between the groups. (p>0.05). Conclusion: A greater anterior-posterior diameter, transverse diameter, narrowest diameter of the NLD, and NLD length were observed with increasing age. The NLD anatomical parameters that we have identified in healthy children may serve as an important and useful guide in determining locations of the NLD and selecting surgical instruments of appropriate size and diameter before NLD surgery.

show abstract

Section: Discussionmentioning

confidence: 99%

“…Numerous studies have stated that NLD anatomy may vary according to sociodemographic features like age, race, and gender (9)(10)(11)15). In the literature, there are several studies that have evaluated the anatomical parameters of the bony NLD in the adult population.…”

Section: Discussionmentioning

confidence: 99%

Anatomical Parameters of Nasolacrimal Duct Evaluated by Computed Tomography in Healthy Children

Altınkaynak¹

2019

Beyoglu Eye J

View full text Add to dashboard Cite

show abstract

“…In recent years, the newly emerged lacrimal CT 3D reconstruction, based on the contrast agent injection (iodized oil) into LSC, could perform the tomoscan, and it could penetrate the surrounding bony substances, and display LSC, but because its premise is also based on the injection of contrast agent into LSC, so the displayed LSC is not its natural size (Limongi et al, 2012;Yu et al, 2013). the ultrasonography has the characteristics of economy, convenience, noninvasion and reproducibility (Pavlidis et al, 2005;Bojakowski et al, 2013;Beltrán et al, 2015), while the commonly used ophthalmic ultrasound (10 MHz) is a 2D ultrasound (Stupp et al, 2004;Tan et al, 2011), which could not exhibit the 3D structure of LSC, and it could also not display the situations of surrounding blood supply.…”

Section: Discussionmentioning

confidence: 99%

Ultrasonic 3D Reconstruction and Measurement of Lacrimal Sac in Normal Adult Chinese Population

et al. 2016

View full text Add to dashboard Cite

TAO, H.; LIU, X.; MEI, X.; HAN, C.; WANG, P. & BAI, F. Ultrasonic 3D reconstruction and measurement of lacrimal sac in normal adult Chinese population. Int. J. Morphol., 34(4):1357Morphol., 34(4): -1361Morphol., 34(4): , 2016. SUMMARY:To apply the ultrasonic 3D reconstruction method to measure the anatomic image data of lacrimal sac in the normal adult Chinese population, providing imaging anatomical basis for the clinical diagnosis and treatment of lacrimal duct diseases. 80 volunteers without lacrimal duct diseases were enrolled. The GE Voluson E8 ultrasonic diagnostic apparatus was used, with gynecological intracavitary probe (frequency: 5 ~ 12MHz) for the examination and measurement. Each datum was repeated three times for the average value. Among the 80 eyes, the lacrimal sacs of 74 eyes exhibited the clear imaging, with the imaging rate as 92.5 %. the vertical diameter of lacrimal sac cavity (LSC): 13.3±2.2 mm; anteroposterior diameter: 6.0±1.1 mm; trans diameter: 4.9±0.9 mm; the vertical distance from the sac cavity top to the skin surface: 6.3±0.12 mm, the vertical distance from the sac cavity bottom to the skin surface: 6.5±0.11 mm; the distance from the angular artery to the medial canthus: 7.8±0.05 mm; the vertical distance from the angular artery to the skin surface: 7.7±0.08 mm. The lacrimal sac and angular artery in the adults could be shown clearly in ultrasonic 3D reconstruction, the accumulated anatomical parameters could provide the instructive meanings towards the clinical diagnosis and treatment of lacrimal diseases.

show abstract

“…Studies emerged to investigate if CT with DCG is a useful alternative to conventional DCG for the diagnostic evaluation of patients with epiphora. In combination with CT, DCG was considered to be a safe and time‐efficient method for assessing the nasolacrimal duct system in patients with epiphora . It provides detailed analysis of the nasolacrimal drainage system as well as the surrounding soft and hard tissue within one setting.…”

Section: Introductionmentioning

confidence: 99%

Computed Tomography Versus Dacryocystography for the Evaluation of the Nasolacrimal Duct—A Study With 72 Patients

Papathanassiou

Koch

Suhling

et al. 2019

Laryngoscope Investig Oto

View full text Add to dashboard Cite

Objectives In patients with epiphora, imaging of the nasolacrimal duct is essential not only for differential diagnosis, but also for preoperative planning. Advances in imaging technology and introduction of cone beam computed tomography (CB‐CT) enable the combination of contrast agent‐based imaging with a three dimensional tomography with low radiation exposure. However, the value of CT/CB‐CT as an alternative to conventional dynamic dacryocystography (DCG) has not been evaluated yet. Study Design Retrospective study. Methods Conventional DCG was performed preoperatively in 72 consecutive patients treated for epiphora between 01/2013 and 04/2015 in our department. CB‐CT or conventional CT was performed afterward with the contrast media still in place. Three separate experts (two radiologists and one otorhinolaryngologist) analyzed the radiographic images without any information about the respective clinical or surgical findings. The presence of further findings in the CT/CB‐CT (eg, septal deviation, sinusitis) that were not detected in DCG and the overall visibility of the lacrimal duct system in both modalities were evaluated. Results Good delineations of bone, soft tissue, and contrast agent in the lacrimal system were achieved with both methods. No side effects were noted. Beside the pathology of the lacrimal duct, CT/CB‐CT scans enabled the additional diagnosis of pathologies in the nose and the sinus system in 65.7% of the patients. Accordance in the identified level of obstruction between the two modalities was achieved in 71.4% of the patients. Conclusion Thus, CT/CB‐CT should be used in conjunction with contrast agent to reliably identify the level of obstruction as preoperative standard and can be used as diagnostic tool in addition to or even instead of conventional DCG. Level of Evidence 4

show abstract

Computed tomographic dacryocystography in children undergoing balloon dacryoplasty

Cited by 16 publications

References 14 publications

Anatomical Parameters of Nasolacrimal Duct Evaluated by Computed Tomography in Healthy Children

Anatomical Parameters of Nasolacrimal Duct Evaluated by Computed Tomography in Healthy Children

Ultrasonic 3D Reconstruction and Measurement of Lacrimal Sac in Normal Adult Chinese Population

Computed Tomography Versus Dacryocystography for the Evaluation of the Nasolacrimal Duct—A Study With 72 Patients

Contact Info

Product

Resources

About