Measurements of Orbital Volume Change Using Computed Tomography in Isolated Orbital Blowout Fractures

2009 ◽  
Vol 11 (6) ◽  
pp. 395-398
Author(s):  
Jaehwan Kwon ◽  
Jose E. Barrera ◽  
Tae-Young Jung ◽  
Sam P. Most
Keyword(s):  
Computed Tomography ◽  
Volume Change ◽  
Orbital Volume ◽  
Orbital Blowout Fractures

Does Orbital Volume Change Using the Mirror Technique Have a Correlation With Posttraumatic Enophthalmos?

2019 ◽  
Vol 30 (4) ◽  
pp. e369-e372 ◽  
Author(s):  
Hassan Mohajerani ◽  
Seyed Mehrshad Jafari ◽  
Mehrdad Dehghanpour barouj ◽  
Negar Manoochehri ◽  
Reza Tabrizi
Keyword(s):  
Volume Change ◽  
Orbital Volume

Effect of mannitol on globe and orbital volumes in humans

2018 ◽  
Vol 28 (2) ◽  
pp. 163-167 ◽  
Author(s):  
Adam C. Weber ◽  
Alexander D. Blandford ◽  
Bryan R. Costin ◽  
Julian D. Perry
Keyword(s):  
Volume Change ◽  
Cleveland Clinic ◽  
Retrospective Chart Review ◽  
Consecutive Series ◽  
Orbital Volume ◽  
Computed Tomographic ◽  
Before And After ◽  
Pressure Lowering ◽  
Volume Measurements

Purpose: To determine the effect of intravenous mannitol on globe and orbital volumes. Methods: Retrospective chart review of a consecutive series of Cleveland Clinic Neurosurgical Intensive Care Unit patients who underwent computed tomographic imaging before and after intravenous mannitol administration. Volume measurements were performed according to a previously described technique by averaging axial image areas. Measurements before and after mannitol administration were compared using paired t-test. Results: Fourteen patients (28 eyes) met inclusion criteria. Average globe volume decreased 186 mm3 (-2.5%, p = 0.02) after mannitol administration, while average orbital volume increased 353 mm3 (+3.5%, p = 0.04). Average globe volume change for subjects with follow-up scan less than 4.7 hours (mean 1.9 hours; range 0.2-4.5 hours) after mannitol administration was -125 mm3 (-1.7%, p = 0.24) and average orbital volume change was +458 mm3 (+5.1%, p = 0.11). Average globe volume change after mannitol administration for those with follow-up more than 4.7 hours (average 13.9 hours, range 4.9-24.7 hours) was -246 mm3 (-3.3%, p = 0.05) and orbital volume change was +248 mm3 (+2.2%, p = 0.24). Dividing the study population into groups based on mannitol dose did not yield any statistically significant change. Conclusions: Human globe volume decreases after intravenous mannitol administration, while orbital volume increases. These volume changes occur during the time period when intraocular pressure normalizes, after the pressure-lowering effects of the drug. This novel volumetric information improves our understanding of mannitol’s mechanism of action and its effects on human ocular and periocular tissues.

scholarly journals Relationship between Degree of Enophthalmos and Orbital Volume Measured with Computed Tomography in Isolated Blowout Fractures of the Orbit

2009 ◽  
Vol 52 (10) ◽  
pp. 810 ◽  
Author(s):  
Joon Jeon ◽  
Kyong Myong Chon ◽  
Tae Young Jung ◽  
Woong Jae Noh ◽  
Jae Hwan Kwon ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Orbital Volume

scholarly journals Computed Tomography Assessment of Response to Therapy: Tumor Volume Change Measurement, Truth Data, and Error

2009 ◽  
Vol 2 (4) ◽  
pp. 216-222 ◽  
Author(s):  
Michael F. McNitt-Gray ◽  
Luc M. Bidaut ◽  
Samuel G. Armato ◽  
Charles R. Meyer ◽  
Marios A. Gavrielides ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Volume Change ◽  
Tumor Volume ◽  
Response To Therapy ◽  
Change Measurement ◽  
Volume Change Measurement

Use of computed tomography to assess volume change after endoscopic orbital decompression for Graves' ophthalmopathy

2015 ◽  
Vol 36 (6) ◽  
pp. 729-735 ◽  
Author(s):  
Bradley A. Schiff ◽  
Caitlin P. McMullen ◽  
Joaquim Farinhas ◽  
Alexis H. Jackman ◽  
Mari Hagiwara ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Volume Change ◽  
Orbital Decompression ◽  
Graves Ophthalmopathy

The validity and reliability of computed tomography orbital volume measurements

2017 ◽  
Vol 45 (9) ◽  
pp. 1552-1557 ◽  
Author(s):  
Silviu C. Diaconu ◽  
David Dreizin ◽  
Mehmet Uluer ◽  
Corey Mossop ◽  
Michael P. Grant ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Validity And Reliability ◽  
Orbital Volume ◽  
Volume Measurements
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