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Otosclerosis :
Otosclerosis : anatomy and pathology in the temporal bone assessed by multi-slice and cone-beam CT
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- Redfors, Ylva Dahlin (författare)
- Departments of Otolaryngology, Institute of Clinical Sciences, Jönköping, Sweden; Sahlgrenska Academy, University of Gotheburg, Gothenburg, Sweden
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- Gröndahl, Hans-Göran, 1940 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för odontologi,Institute of Odontology
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- Hellgren, Johan, 1965 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för kliniska vetenskaper, Avdelningen för öron-, näs- och halssjukdomar,Institute of Clinical Sciences, Department of Otorhinolaryngology
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- Lindfors, Ninita (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för kliniska vetenskaper,Institute of Clinical Sciences
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- Nilsson, I. (författare)
- Department of Neuroradiology, Sahlgrenska University Hospital, Gothenburg, Sweden
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- Möller, Claes, 1950- (författare)
- Örebro universitet,Institutionen för hälsovetenskap och medicin,Department of Audiology, Örebro University Hospital, Örebro, Sweden
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(creator_code:org_t)
- Philadelphia, USA : Lippincott Williams & Wilkins, 2012
- 2012
- Engelska.
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Ingår i: Otology and Neurotology. - Philadelphia, USA : Lippincott Williams & Wilkins. - 1531-7129 .- 1537-4505. ; 33:6, s. 922-927
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://gup.ub.gu.se...
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Abstract
Ämnesord
Stäng
- Objective: To assess the use of cone beam computed tomography (CBCT) compared with multi-slice computed tomography (MSCT) in otosclerosis, with special emphasis on middle-and inner-ear anatomy.Study Design: Prospective study.Patients: Twenty patients who underwent a stapedectomy 30 years ago were selected on the basis of bone conduction threshold values. Their mean age was 65 years (range, 48-76 yr).Intervention: All patients underwent CBCT and MSCT with a slice thickness of 0.5 to 0.6 mm.Main Outcome Measures: Sixteen middle-and inner-ear anatomic structures and stapedial prostheses were analyzed by visual grading analysis. To assess critical reproduction and thereby the clinical applicability of CBCT, a dichotomization was made. Assessment of otosclerotic foci was performed using a grading system dividing the lesions in; 1) sole fenestral lesions, 2) retrofenestral lesions with or without fenestral lesions and 3) severe retrofenestral lesions.Results: The 16 anatomic structures were clearly reproduced by both imaging techniques. However, there was an interobserver variation in judging the superiority of 1 method in favor of the other. Otosclerotic lesions were diagnosed in 80/95% using MSCT and 50/85% using CBCT (evaluators 1 and 2, respectively). Retrofenestral lesions were diagnosed in 5 of 10 of ears with severe-to-profound hearing loss, whereas no retrofenestral lesions were diagnosed in the 10 ears with mild-to-moderate hearing loss. The stapedial prostheses were adequately or very well reproduced by both methods.Conclusion: CBCT is a new imaging technique with a considerably lower radiation dose than conventional MSCT. Our study indicates that CBCT is suitable and, in many ways, equivalent to MSCT, for temporal bone imaging in otosclerosis.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Oto-rhino-laryngologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Otorhinolaryngology (hsv//eng)
Nyckelord
- Cochlear implantation
- temporal bone
- scanners
- otoscleros
- clinical neurology
- stapedectomy
- multi slice computed tomography
- otorhinolaryngology
- cone beam computed tomography
- hearing-loss
- accuitomo
- computed-tomography
- image quality
- Medicine
- Medicin
- Cone beam computed tomography; Multi slice computed tomography; Otosclerosis; Stapedectomy; Temporal bone
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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