Ultrasound Options for Measuring Optic Nerve Sheath Diameter in Children

Capasso, Luigi; Bernardo, Maddalena De; Vitiello, Livio; Rosa, Nicola

doi:10.1097/pcc.0000000000002676

Cited by 21 publications

(17 citation statements)

References 8 publications

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“…The differential diagnosis of ODD with other congenital optic nerve anomalies or hereditary optic neuropathies, including optic nerve coloboma, optic nerve pit, myelinated nerve fibers and morning glory disc anomaly, is of fundamental importance. US, in association with a careful fundus examination, seems to be essential in the differential diagnosis [26][27][28][29][30]. This is the reason why we utilized a sample of patients with papilledema as control group and not normal subjects, as we thought that it was more important to differentiate patients with optic nerve drusen from patients with papilledema and not from patients with normal optic discs.…”

Section: Discussionmentioning

confidence: 99%

Optic Nerve Drusen Evaluation: A Comparison between Ultrasound and OCT

Rosa

Bernardo

Abbinante

et al. 2022

JCM

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This observational study compared optic coherence tomography (OCT) and B-scan in the detection of optic disc drusen. In total, 86 eyes of 50 patients with optic disc drusen (ODD) (36 bilateral) with a mean age of 34.68 ± 23.81 years, and 54 eyes of 27 patients with papilledema, with a mean age of 35.42 years ± 17.47, were examined. Patients with ODD, diagnosed with ultrasound, underwent spectral-domain OCT evaluation. With US, 28 ODD cases were classified as large (4 buried and 24 superficial), 58 were classified as point-like (6 buried, 49 superficial and 3 mixed). Then, all patients underwent OCT. OCT was able to detect the presence of ODD and/or peripapillary hyperreflective ovoid mass structure (PHOMS) in 69 eyes (p < 0.001). In particular, 7 eyes (8.14%) showed the presence of ODD alone, 25 eyes (29.07%) showed only PHOMS and 37 eyes (43.02%) showed ODD and PHOMS. In 17 eyes (19.77%) no ODD or PHOMS were detected. In the papilledema group, no ODD were observed with both US and OCT. OCT showed the presence of drusen or similar lesions in only 80.23% of the cases highlighted by the US scan, so it does not allow for certain ODD diagnoses, especially in the case of buried ODD.

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Section: Discussionmentioning

confidence: 99%

Optic Nerve Drusen Evaluation: A Comparison between Ultrasound and OCT

Rosa

Bernardo

Abbinante

et al. 2022

JCM

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“…2 Although this concern appears valid, the blooming effect seen in USG occurs when the gain setting, and therefore the resolution, is not standardised while acquiring B-scan images. 2 Moreover, the axial and lateral resolution of spectral-domain OCT (SD-OCT) is approximately 100 times greater than USG with a standardised technique in different OCT devices. 3 Therefore, images captured by the same OCT device used in our study (Spectralis, Heidelberg Engineering, heide lberg engin eering.com) should have been less affected by the so-called blooming effect.…”

Section: A U T H O R ' S R E P L Ymentioning

confidence: 99%

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Sevik

Çam

Aykut

et al. 2022

Ophthalmic Physiologic Optic

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Section: Introductionmentioning

confidence: 99%

“…Furthermore, ultrasound is a rapid, cheap, real-time, safe, and non-invasive diagnostic tool that could be really useful when the patients are critically ill, allowing a bedside appraisal. However, to perform a reliable and well-executed ocular ultrasonography, especially in the optic nerve evaluation, a well-trained and skilled operator is required, and a series of precautions in the exam execution and in the utilized probe and technique should be considered ( 5 – 7 ). Ultrasonography could be used to qualitatively and efficiently detect ICP increases, but to reach this purpose, clear cut-off values are mandatory, and some papers report conflicting results on the cut-off values and ultrasound protocols to identify intracranial hypertension.…”

Section: Introductionmentioning

confidence: 99%

Optic Nerve Ultrasound Evaluation in Animals and Normal Subjects

et al. 2022

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In recent years, ultrasonographic measurement of the optic nerve sheath diameter (ONSD) has been widely used to identify the presence of increased intracranial pressure (ICP). Intracranial hypertension is a life-threatening condition that can be caused by various neurological and non-neurological disorders, and it is associated to poor clinical results. Ultrasonography could be used to qualitatively and efficiently detect ICP increases, but to reach this purpose, clear cut-off values are mandatory. The aim of this review is to provide a wide overview of the most important scientific publications on optic nerve ultrasound normal values assessment published in the last 30 years. A total of 42 articles selected from PubMed medical database was included in this review. Our analysis showed that ocular ultrasonography is considered to be a valuable diagnostic tool, especially when intracranial hypertension is suspected, but unfortunately this research provided conflicting results that could be due to the different ultrasound protocols. This is mainly caused by the use of B scan alone, which presents several limitations. The use of B-scan coupled with the standardized A-scan approach could give more accurate, and reliable ultrasound evaluation, assuring higher data objectivity.

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Ultrasound Options for Measuring Optic Nerve Sheath Diameter in Children

Cited by 21 publications

References 8 publications

Optic Nerve Drusen Evaluation: A Comparison between Ultrasound and OCT

Optic Nerve Drusen Evaluation: A Comparison between Ultrasound and OCT

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Optic Nerve Ultrasound Evaluation in Animals and Normal Subjects

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