Final Pr. ID: Poster #: CR-017
Retinoblastoma is an aggressive malignant tumor and the most common malignant intraocular tumor in children. The key to better treatment is early detection, before it metastasizes. We aim to provide better quantifiable measurements to assist the clinician in the evaluation of tumor response.
Currently, 2D sonography is performed to confirm the diagnosis, and after each sequential treatment. Thus, a change in tumor size during treatment is made by 2D evaluation only. Three-dimensional (3D) ultrasonography is an enhancement of the ultrasonographic technique that allows an examiner to obtain, non-invasively, 3D volumetric images. 3D ultrasound imaging is primarily performed in the Ob/Gyn setting. However, more and more it is being used for other areas of the body. We think that 3D technology may be particularly useful since retinoblastomas can have very irregular shapes and, therefore, simpler techniques to estimate volumes such as the performance of three orthogonal two-dimensional measurements multiplied by 0.523 to estimate the volume of an oval structure using the ellipsoid formula may be unreliable. We present several case studies performed at our institution with a developed protocol for such imaging along with the results of the study. Read More
Final Pr. ID: Poster #: EDU-005
Recognize the clinical features of vascular lesions of the orbit that occur in children.
Describe classification schemes of vascular lesions of the orbit that occur in children.
Identify the imaging features that permit differentiation among lesions.
Highlight new treatment modalities in which interventional radiologists can intercede. Read More
Final Pr. ID: Poster #: EDU-023
There is increasing interest in the use of ultrasonography to characterize pediatric ocular abnormalities. Normal orbital anatomy and many abnormal conditions affecting the orbit are well seen with orbital ultrasonography. Some entities display distinct, characteristic ultrasonographic features which may serve to confirm the clinical diagnosis. This educational exhibit demonstrates the value of orbital ultrasonography in evaluating normal orbital anatomy and the various pathologic conditions that may affect the eye in children. Read More
Final Pr. ID: Poster #: SCI-044
To describe the imaging manifestations of orbit involvement in extra orbital oncological processes in the pediatric population. Read More
Final Pr. ID: Poster #: EDU-009
Congenital eye malformations are relatively rare. However, they are often associated with complex clinical syndromes that require extensive prenatal evaluation and counseling. The purpose of this study is to provide a review of various congenital ocular anomalies that can be detected on prenatal ultrasound and/or MRI in isolation or as part of a syndromic findings and to address the importance of the prenatal genetic evaluation and parental counseling. Read More
Final Pr. ID: Poster #: CR-002
PFV is a rare congenital orbital malformation in which there is failure of the hyaloid artery to regress causing a persistent vasculature within the vitreous portion of the eye. Patients present with leukocoria that can be unilateral or bilateral. The most concerning differential diagnosis is retinoblastoma. We present three case studies referred for evaluation to exclude retinoblastoma in which MFI assisted in making the diagnosis of PFV. Imaging was perfomed with a high frequency linear array transducer and established preset in accordance with FDA guidelines.
When characterizing orbital masses, early and accurate diagnosis is crucial to the patient’s prognosis. Ultrasound can be a superior method due to its ability to visualize superficial structures and detect slow velocity blood flow. While CD and SD are able to determine direction and velocity of flow, MFI improves the sensitivity and ability to display microvascularities.
Three-month-old male with right eye leukocoria. Ultrasound demonstrated smaller right than left globe. A triangular retrolental amorphous and heterogeneous soft tissue mass was present. A mass with fibrovascular stalk containing a persistent hyaloid artery was observed with layering debris. Left orbit was normal. Findings consistent with right PFV.
Six-week-old female with left eye leukocoria. Ultrasound demonstrated a normal right globe. The left globe had a hyperechogenic triangular mass extending from the posterior margin of the lens to the optic nerve. A persistent hyaloid artery was noted. The posterior margin of the lens was irregular. A small amount of subretinal fluid over lied the optic nerve. Findings consistent with left PFV.
Newborn male with microphthalmia and possible cataractous lens. Ultrasound demonstrated right globe with lens intact, anechoic and normally located. A hyperechogenic mass with ill-defined borders extends from the posterior aspect of the lens to the retina along the central aspect of the globe. No calcifications were observed. Blood flow noted within a persistent hyaloid artery. The triangular portion of the mass attached to the lens also demonstrated increased microvascularity. Left globe with intact lens which was anechoic and normally located. Evaluation of the left posterior chamber demonstrates a similar-appearing mass with a persistent hyaloid artery. Findings consistent with bilateral PFV. Read More