Intraoperative computed tomography with the mobile CT Tomoscan M during surgical treatment of orbital fractures

Hoelzle, F.; Klein, Martin; Schwerdtner, O.; Lueth, Tim C.; Albrecht, Jacob; Hosten, Norbert; Félix, R.; Bier, J.

doi:10.1054/ijom.2000.0014

Cited by 88 publications

(43 citation statements)

References 10 publications

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“…Through these varied protocols, it can be used extensively not just for patients undergoing neurosurgery, but also for patients in other specialties such as orthopedics, pediatrics and otorhinolaryngology. Hoelzle et al 6) reported that the iCT monitoring of orbital floor fractures is considered a very useful surgical aid for immediate monitoring of a surgical reduction. Stieve et al 11) demonstrated that iCT could assist in exposure of the skull base and lamina papyracea during endonasal surgery or cochlear implantation in otorhinolaryngology.…”

Section: Clinical Applicationsmentioning

confidence: 99%

Mobile Computed Tomography : Early Experience in Korea

Kim

Lee

Son

et al. 2010

J Korean Neurosurg Soc

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Objective : With improved technology, the values of intraoperative computed tomography (iCT) have been reevaluated. We describe our early clinical experience with a mobile CT (mCT) system for iCT and discuss its clinical applications, advantages and limitations. Methods : Compared with intraoperative magnetic resonance imaging, this mCT system has no need for major reconstruction of a preexisting operating room for shielding, or for specialized instruments or equipment. Patients are placed on a radiolucent head clamp that fits within the gantry. Because it consists simply of a scanner and a workstation, it can be moved between locations such as an operating room, an intensive care unit (ICU) or an emergency room without difficulty. Furthermore, it can achieve nearly all types of CT scanning procedures such as enhancement, temporal bone imaging, angiography and three-dimensional reconstruction. Results : For intracranial surgery, mCT can be used for intraoperative real-time neuronavigation by interacting with preoperative images. It can also be used for intraoperative confirmation of the extent of resection of intracranial lesions and for immediate checks for preventing intraoperative unexpected accidents. Therefore, the goals of maximal resection or optimal treatment can be achieved without any guesswork. Furthermore, mCT can achieve improved patient care with safety and faster diagnosis for patients in an ICU who might be subjected to a ventilator and/or various monitoring devices. Conclusion : Our initial experience demonstrates that mCT with high-quality imaging offers very useful information in various clinical situations.

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Section: Clinical Applicationsmentioning

confidence: 99%

Mobile Computed Tomography : Early Experience in Korea

Kim

Lee

Son

et al. 2010

J Korean Neurosurg Soc

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“…2,[23][24][25] Although the capability of conventional non-contrast CT in providing multiplanar thin slices with good spatial resolution and three-dimensional images in orbital fractures 21,26,27 has nominated it as the imaging method of choice, a significant concern as to the hazard of radiation exists. [28][29][30][31][32][33] To obviate this concern, some investigators have suggested orbital ultrasonography as an alternative, with a sensitivity, specificity, positive-predictive value and negative-predictive value ranging from 85% to 95%, 57% to 100%, 57% to 100% and 60% to 91%, respectively. [10][11][12]15,16,18,19 In the present study, the corresponding values were 87.2%, 100%, 100% and 94.2%, respectively; suggesting a high diagnostic accuracy of ultrasonography in detecting orbital floor fractures.…”

Section: Discussionmentioning

confidence: 99%

A comparable study of the diagnostic performance of orbital ultrasonography and CBCT in patients with suspected orbital floor fractures

Johari‬¹,

Ghavimi²,

Mahmoudian³

et al. 2016

Dentomaxillofacial Radiology

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Objectives: To compare the diagnostic performance of ultrasonography and CBCT against CT in detecting orbital floor fractures. Methods: A total of 120 orbits with clinical suspicion of isolated orbital floor fractures underwent multislice CT scanning with coronal reconstruction; orbital ultrasonography using a standard machine equipped with a 7-to 10-MHz linear transducer; and CBCT. Patients with severe head and face injuries were not included. The diagnostic performance of ultrasonography and CBCT was reported assuming conventional CT as the imaging method of choice. Results: According to CT findings, fractures of the floor were present in 39 orbits. The sensitivity, specificity, positive-predictive value and negative-predictive value of ultrasonography in detecting orbital floor fractures were 87.2%, 100%, 100% and 94.2%, respectively. The corresponding values for CBCT were 97.4%, 97.5%, 95.0%, and 98.8%, respectively. Areas under the receiver operator characteristics curves of orbital floor fracture detection were 0.94 for ultrasonography and 0.98 for CBCT. Conclusions: When conventional CT cannot be performed in patients with clinically suspected orbital floor fracture and no severe or complex head and face injuries, CBCT could be used in detecting fractures as a reliable surrogate. Because of a lower sensitivity of ultrasonography, however, its use is limited in this regard.

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“…Hence, it is an unreliable guide.The radiographic-imaging technique creates difficulty in positioning the patient, high risk of exposure to radiation and adds significantly to operative time due to the technician and film processing delay. In Sonography, minimally displaced fractures are not well appreciated 5 so assessment for precise reduction is not possible. CT Scan is considered gold standard in the diagnosis of zygomatic arch fractures.…”

Section: Case Reportmentioning

confidence: 99%

C-Arm for accurate reduction of zygomatic arch fracture — A case report

Badjate

Cariappa

2005

Br Dent J

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Fracture of the zygomatic arch is usually treated using blind methods. As the fracture lines cannot be visualised directly in closed reduction, digital exploration and crepitus noise or conventional radiographic imaging are used clinically as a guide to reposition the fragments. Successful closed reductions are often difficult to evaluate clinically because of the great amount of swelling that often accompanies these fractures. Postoperative radiographs are often the only way to assess the adequacy of the reduction. This article describes a technique that uses the C-Arm to quickly and accurately evaluate the reduction intraoperatively so that appropriate corrections can be made. A case report of a patient who suffered a w-shaped depressed fracture of the left zygomatic arch and zygomatico-maxillary complex fracture is presented.

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Intraoperative computed tomography with the mobile CT Tomoscan M during surgical treatment of orbital fractures

Cited by 88 publications

References 10 publications

Mobile Computed Tomography : Early Experience in Korea

Mobile Computed Tomography : Early Experience in Korea

A comparable study of the diagnostic performance of orbital ultrasonography and CBCT in patients with suspected orbital floor fractures

C-Arm for accurate reduction of zygomatic arch fracture — A case report

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