Non-echo planar diffusion-weighted MRI increases follow-up accuracy after one-step step canal wall-down obliteration surgery for cholesteatoma

Edfeldt, Lennart; Strömbäck, Karin; Danckwardt-Lillieström, Niklas; Rask‐Andersen, Helge; Abdsaleh, Shahin; Wikström, Johan

doi:10.3109/00016489.2012.762118

Cited by 16 publications

(12 citation statements)

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“…The size of lesion determined by the non-EPI DW images correlated well with intra-operative findings, with error margins lying within 1 mm [28][29][30][31]. Non-EPI DW MRI can distinguish cholesteatoma from other tissues and from mucosal reactions in the middle ear (ME) and mastoid, and it can also demonstrate the extent of the lesion [27][28][29][30][31]. Thus, we prefer performing the non-EPI DWI MRI prior to primary cholesteatoma surgery as well as before revision procedures [31].…”

Section: Endoscopic Surgery For Cholesteatomasupporting

confidence: 55%

“…Preoperative assessment includes otoscopy and pure tone audiometry in all patients. Recent studies have shown that non-echo planar (non-EPI) diffusion-weighted (DW) magnetic resonance imaging (MRI) can accurately predict the presence and extent of cholesteatoma in both primary and residual cases [27][28][29][30][31]. The size of lesion determined by the non-EPI DW images correlated well with intra-operative findings, with error margins lying within 1 mm [28][29][30][31].…”

Section: Endoscopic Surgery For Cholesteatomamentioning

confidence: 99%

“…Recent studies have shown that non-echo planar (non-EPI) diffusion-weighted (DW) magnetic resonance imaging (MRI) can accurately predict the presence and extent of cholesteatoma in both primary and residual cases [27][28][29][30][31]. The size of lesion determined by the non-EPI DW images correlated well with intra-operative findings, with error margins lying within 1 mm [28][29][30][31]. Non-EPI DW MRI can distinguish cholesteatoma from other tissues and from mucosal reactions in the middle ear (ME) and mastoid, and it can also demonstrate the extent of the lesion [27][28][29][30][31].…”

Section: Endoscopic Surgery For Cholesteatomamentioning

confidence: 99%

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Minimally Invasive Transcanal Endoscopic Ear Surgery

Migirov¹,

Wolf²

2015

Endoscopy - Innovative Uses and Emerging Technologies

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Endoscopes have rapidly become widely accepted in the performance of ear surgery. Current chapter describes surgical technique and benefits and limitations for endoscopic eradication of cholesteatoma, endoscopic tympanoplasty, endoscopic stapedotomy and endoscopic cochlear implantation.Minimally invasive endoscopic and endoscope-assisted surgical techniques are increasingly being employed in the surgical management of cholesteatoma. Endoscopic surgeries distinctly reduced residual cholesteatomas and the indications of later tympanotomy thanks to the good visualization of residual cholesteatoma sites, such as the anterior and posterior epitympanic spaces, sinus tympani, facial recess, and hypotympanum. Minimally invasive transcanal endoscopic approach can be applied as for primary cholesteatomas as well as for revision of CWU cases, when residual/recurrent cholesteatoma is confined to the middle ear, and in CWD or radical cavities, when residual/recurrent disease is hidden in the supratubal recess, sinus tympani or under pseudo-membrane in the large mastoid cavities.The use of endoscopes in myringoplasty is especially helpful in patients with narrow external canals, anterior defects and bone overhang, when perforation's margins are barely, if at all, visible under a microscope.The transcanal endoscopic stapedotomy can be beneficial in improving the visibility and accessibility of the stapes and the oval window niche, avoiding manipulation of the chorda tympani nerve and blind fracture of the stapedial crurae.An endoscopic cochlear implantation involves entering the middle ear by means of endoscopic transcanal tympanotomy and insertion of the electrode array into the scala tympani via the round window under direct endoscopic control. The main benefits of the endoscopic transcanal approach to cochlear implant are improving the visibility and accessibility of the round window membrane, obviating the need to divide the chorda tympani nerve in order to obtain adequate exposure of the middle ear structures, and eliminating the risk of the facial nerve injury since it is not in the direction of drilling.

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Section: Endoscopic Surgery For Cholesteatomasupporting

confidence: 55%

Section: Endoscopic Surgery For Cholesteatomamentioning

confidence: 99%

Section: Endoscopic Surgery For Cholesteatomamentioning

confidence: 99%

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Minimally Invasive Transcanal Endoscopic Ear Surgery

Migirov¹,

Wolf²

2015

Endoscopy - Innovative Uses and Emerging Technologies

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“…The non-EPI modalities reduce interface artifacts and have better image quality due to improved spatial resolution [11]. Various studies have examined the utility of this imaging modality for cholesteatoma [16][17][18][19][20][21]22 • , 23 • , [24][25][26]. In one systematic review, Jindal [22 • ] found non-EPI to be superior to EPI with sensitivity and specificity of 91.4 and 95.8 % compared to 70.6 and 87.3 %.…”

Section: Use Of Diffusion-weighted Mri For Cholesteatoma Managementmentioning

confidence: 99%

Clinical Utility of MRI for Cholesteatoma Recurrence

McJunkin

Chole

2014

Curr Surg Rep

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Diffusion-weighted magnetic resonance imaging (DWI) has recently been proposed as an alternative to surgical exploration for suspected recurrent or residual cholesteatoma. A second-look surgery is often planned for extensive disease in ears where the posterior canal wall has been left intact. Alternatively, granulation tissue with chronic otorrhea in a patient with a history of cholesteatoma is highly suspicious for recurrence. Computerized tomography imaging is excellent for showing bony definition details of the temporal bone but cannot differentiate between soft tissue types. Cholesteatoma has unique signaling characteristics on DWI that can help distinguish between inflammatory tissue and residual or recurrent disease. Keywords Cholesteatoma Á Diffusion-weighted imaging Á Recurrent cholesteatoma Á Residual cholesteatoma Á MRI This article is part of the Topical Collection on Ear Surgery.

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“…A qualidade de vida dos pacientes submetidos à cirurgia de obliteração foi medida utilizando-se a escala de resultados de Glasgow (ERG), já aplicada por outros autores para avaliação do procedimento de obliteração mastoidea reportada por diversos autores 7,31,36,38,40,44,46,47,49,[51][52][53] 32 , 2013, que consideram que a escolha do tipo de retalho de cobertura é mais importante do que a escolha do material de preenchimento.…”

Section: Avaliação Da Qualidade De Vida Após O Procedimentounclassified

Obliteração de cavidades mastoideas com aloenxerto ósseo particulado congelado em cirurgias revisionais de otite média crônica colesteatomatosa

Fonseca¹

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Non-echo planar diffusion-weighted MRI increases follow-up accuracy after one-step step canal wall-down obliteration surgery for cholesteatoma

Cited by 16 publications

References 16 publications

Minimally Invasive Transcanal Endoscopic Ear Surgery

Minimally Invasive Transcanal Endoscopic Ear Surgery

Clinical Utility of MRI for Cholesteatoma Recurrence

Obliteração de cavidades mastoideas com aloenxerto ósseo particulado congelado em cirurgias revisionais de otite média crônica colesteatomatosa

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