MR-Eye: High-Resolution Microscopy Coil MRI for the Assessment of the Orbit and Periorbital Structures, Part 2: Clinical Applications

Abstract

In the first part of this 2-part series, we described how to implement microscopy coil MR imaging of the orbits. Beyond being a useful anatomic educational tool, microscopy coil MR imaging has valuable applications in clinical practice. By depicting deep tissue tumor extension, which cannot be evaluated clinically, ophthalmic surgeons can minimize the surgical field, preserve normal anatomy when possible, and maximize the accuracy of resection margins. Here we demonstrate common and uncommon pathologies that may be encountered in orbital microscopy coil MR imaging practice and discuss the imaging appearance, the underlying pathologic processes, and the clinical relevance of the microscopy coil MR imaging findings.

Quantitative Diffusion-Weighted MR Imaging: Is There a Prognostic Role in Noninvasively Predicting the Histopathologic Type of Uveal Melanomas?

“…Uveal melanoma (UM) is a malignant neoplasm arising from neural crest-derived melanocytes of the uvea, which is the vascular pigmented layer of the eye [1,2]. The diagnosis of UM is primarily clinical, which is based on noninvasive ophthalmological techniques (indirect ophthalmoscopy) and is associated, where necessary, with supplementary ophthalmological imaging modalities (fundus fluorescein angiography, optical coherence tomography and A-mode scan and B-mode scan ultrasonography) and radiological imaging tools (magnetic resonance imaging MRI) [3,4]. A biopsy is not routinely performed for diagnostic purposes [5,6]; however, it can be used in the case of lesions with atypical appearance and, above all, for prognostication [7][8][9][10][11][12].…”

Anatomic and Magnetic Resonance Imaging-Based Correction of Upper-Eyelid Depression and Blepharoptosis in Senile Patients

“…With further improvement of its clarity and resolution, structures, such as the orbital septum, palpebral plate, fat pads, levator muscle, and aponeurosis, can be distinguished 19. In previous studies, MRI was primarily used to observe the fine anatomy of the upper eyelid and compare the anatomy of different races 2,19–22. However, its application in the surgical correction of the sunken upper eyelid with senile ptosis has rarely been mentioned.…”

“…19 In previous studies, MRI was primarily used to observe the fine anatomy of the upper eyelid and compare the anatomy of different races. 2,[19][20][21][22] However, its application in the surgical correction of the sunken upper eyelid with senile ptosis has rarely been mentioned.…”