Comparison of multidetector row CT cross-sectional source images with multiplanar 2D-, 3D- reconstructions and virtual endoscopy in assessment of the middle ear

Trojanowska, Agnieszka; Czekajska−Chehab, Elżbieta; Trojanowski, Piotr; Olszański, Witold; Klatka, Janusz; Drop, Andrzej; Gołąbek, Wiesław

doi:10.1016/s0150-9861(06)77280-7

Cited by 5 publications

(5 citation statements)

References 6 publications

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“…Although a topographical image produced by VO cannot depict color shades of the canal itself, which can be detected by fiberoptic endoscopy [12,26], VO has been widely investigated in human medicine as a supplement to diagnostic imaging and surgical planning [8,12,18,25]. In veterinary medicine, the utility of VO for examining the inside ear was recently assessed in normal dogs [6].…”

Section: Discussionmentioning

confidence: 99%

Virtual otoscopy for evaluating the inner ear with a fluid-filled tympanic cavity in dogs

Cho

Lee

et al. 2012

J Vet Sci

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The feasibility of virtual otoscopy (VO) imaging was evaluated in five dogs with experimentally induced otitis media, two control dogs, and two canine patients with otitis media. VO images of the tympanic cavity and ossicles were generated with commercially available software using raw computed tomography (CT) data. Eight out of 10 ears inoculated with pathogen exhibited obvious clinical signs associated with otitis externa. CT images revealed soft tissue density material occupying the tympanic bulla compatible with otitis media in three dogs with experimentally induced otitis media and two patients. No remarkable features were observed on the radiographs. Four different VO views (ear canal, tympanic bulla, eustachian tube, and ossicular chain) were created. Promontory, cochlea window, tympanic, and septum bulla as well as ossicles were easily and clearly distinguished except for the incus and stapes of the clinical patients. VO images were not more suitable than images created with conventional CT for accurately diagnosing otitis media in this study. However, it appears that VO could be more feasible for assessing the complex structure of the inner ear in dogs with fluid-filled tympanic cavities since fluid accumulation within the tympanic bulla did not affect the evaluation of bony tissue in the middle ear on VO images.

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Section: Discussionmentioning

confidence: 99%

Virtual otoscopy for evaluating the inner ear with a fluid-filled tympanic cavity in dogs

Cho

Lee

et al. 2012

J Vet Sci

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“…One of the facilities in the evaluation of 3D images is the ability to orient the reader's attention directly to the injury site by turning around the skeleton to reveal any defect 16,23 ( Figure 14 ). In this way, it is possible to detect abnormalities easily in a short time 24,25. It is also is possible to reduce the artifacts or and to remove superposition (missed foreign bodies, pathological fractures, superposed implants or catheters) by this method.…”

Section: Discussionmentioning

confidence: 99%

Three-dimensional scanning with dual-source computed tomography in patients with acute skeletal trauma

Yıldırım

Tamam

Gümüş

2010

Clinics

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OBJECTIVE:The aim of this study was to compare the efficiency of multiplanar reformatted images and three‐dimensional images created after multidetector computed tomography examination in detecting acute post‐traumatic osseous pathology of the skeletal system.METHOD:Between October 2006 and December 2008, 105 patients with a history of acute trauma were referred to our service. Patients were evaluated with multidetector computed tomography using multiplanary reconstructed images initially (R‐I), and six months after this initial evaluation, three‐dimensional images were assessed of each patient (R‐II). Axial images were used for guiding as a reference Data obtained was recorded and graded according to importance levels of the pathologies.RESULTS:The R‐II score was higher in the non‐articular and highest in periartricular fractures of the extremities, and thoracic and pelvic cage injuries. For the spinal column, while R‐I data was more significant In patients referred with polytrauma, R‐II data, was more statistically significant, for short processing and adaptation time to acquiring immediate critical information. For all cases it was seen that three dimensional scans were more efficient in providing the orientation, within a short time.CONCLUSION:By dual source multidedector tomography systems trauma patients may be evaluated by multiplanary and three dimensionally reconstructed images. When used correctly, three dimensional imaging is advantageous and can help determine the exact nature and extension and also importance of osseous injuries.

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“…Other neoplasms are isodense on T1-weighted images and hyperintense on T2-weighted, with a contrast-enhanced and restricted diffusion on DWI sequence. However, restriction of diffusion and perfusion depends on mitotic activity, degenerative changes and size of the tumour [9][10][11]. It has to be pointed out the although squamous cell carcinoma and melanoma are aggressive tumours as far as local grow and recurrence are concerned, but lymphatic spread was almost exclusively revealed for melanoma [2,12].…”

Section: Primary and Secondary Tumoursmentioning

confidence: 99%

“…It is also important to see potential infiltration of meninges, cerebrum, into auditory tube and in external acoustic meatus, including destruction of their cartilage and infiltration on carotid, parapharyngeal, parotid and masticatory spaces, including TMJ. In case of skeleton destruction, the final diagnosis requires HRCT to evaluate bone lytic lesions [10,11,13]. Similar procedures should be done for middle ear meningiomas that arise from pia-arachnoid cells but may be present in a tympanic or mastoid cavity and auditory tube [14].…”

Section: Primary and Secondary Tumoursmentioning

confidence: 99%

Benign and Malignant Tumours of the Ear and Temporal Bone

Burdan¹

2018

Imaging of the Temporomandibular Joint

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Neoplasms of the temporal bone, especially malignant ones, are rare. Their occurrence is estimated on 0.2% of all tumours of the head and neck, including lesions of the skin of the pinna that spread to the temporal bone, primary tumours of the external auditory meatus, middle ear and various parts to the temporal bone. Among benign neoplasms, the most common are adenoma, chordoma, lipoma, neurofibroma and schwannoma. Malignancies are usually represented by acinic cell carcinoma, adenocarcinoma, adenoid cystic carcinoma, basal cell carcinoma, squamous cell carcinoma, chondrosarcoma, osteosarcoma, haemato-lymphoid tumours (including lymphomas), rhabdomyosarcoma, melanoma, malignant neuroma and paraganglioma as well as metastatic lesions and infiltration by pharyngeal, parotid and CNS tumours [1,2]. The lymphatic drainage is typically exclusive for structures of external and middle ear (membranes labyrinth does not have lymph vessels), and their primary lymph nodes are retroauricular, paraauricular and upper deep cervical ones (radiological group II) that drain the lymph from both previous groups. Lymph from the auditory tube is also drained into retropharyngeal nodes but finally is collected by deep cervical ones-group II and III [3][4][5].

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Comparison of multidetector row CT cross-sectional source images with multiplanar 2D-, 3D- reconstructions and virtual endoscopy in assessment of the middle ear

Cited by 5 publications

References 6 publications

Virtual otoscopy for evaluating the inner ear with a fluid-filled tympanic cavity in dogs

Virtual otoscopy for evaluating the inner ear with a fluid-filled tympanic cavity in dogs

Three-dimensional scanning with dual-source computed tomography in patients with acute skeletal trauma

Benign and Malignant Tumours of the Ear and Temporal Bone

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