Staging primary middle ear cholesteatoma with non‐echoplanar (half‐Fourier‐acquisition single‐shot turbo‐spin‐echo) diffusion‐weighted magnetic resonance imaging helps plan surgery in 22 patients: Our experience

Majithia, Anooj; Lingam, Ravi Kumar; Nash, Robert; Khemani, Sameer; Kalan, A.; Singh, Arvind

doi:10.1111/j.1749-4486.2012.02502.x

Cited by 25 publications

(12 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, as reported in other studies [1,18,23,24], the main limitation of CT is the low specificity for cholesteatoma when tissue is present in the tympanic and mastoid air cavity because it cannot differentiate between cholesteatoma, cholesterol granuloma, brain parenchyma, granulation and scar tissue, just as in our experience (with a sensitivity of only 56%). It is typically the case of an FN patient whose CT scan showed no erosion signs, while both EPI and not-EPI DWI-MR revealed the presence of cholesteatoma confirmed also during surgery (fig.…”

Section: Discussionmentioning

confidence: 53%

Diffusion-Weighted Intensity Magnetic Resonance in the Preoperative Diagnosis of Cholesteatoma

Cavaliere¹,

Lullo²,

Caruso³

et al. 2014

ORL

View full text Add to dashboard Cite

We have analyzed the preoperative diagnosis of cholesteatoma through the use of diffusion-weighted intensity magnetic resonance (DWI-MR) in 16 consecutive patients suffering from chronic otitis media with clinical and radiological (by computed tomography) suspicion of cholesteatoma. In particular, we compared the radiological data with intraoperative ones, verifying the correspondence (in terms of sensitivity, specificity, positive predictive value, negative predictive value and diagnostic accuracy) between what is reported by DWI-MR and what is actually detectable at the time of surgery. Furthermore, we identified the most reliable DWI-MR sequence [single-shot (SSh) echo planar imaging (EPI) vs. multi-shot turbo spin-echo not-EPI] to detect cholesteatoma and reduce the time for examination. The obtained data on computed tomography scans revealed low diagnostic accuracy (56%); DWI-MR, instead, showed higher values, especially using not-EPI sequences (93.75 vs. 68.75% obtained by SSh-EPI sequences).

show abstract

Section: Discussionmentioning

confidence: 53%

Diffusion-Weighted Intensity Magnetic Resonance in the Preoperative Diagnosis of Cholesteatoma

Cavaliere¹,

Lullo²,

Caruso³

et al. 2014

ORL

View full text Add to dashboard Cite

show abstract

“…Cholesterol granuloma is often seen as a round mass with defined border in CT scan which can be isodense, slightly hyperdense, or mixed. Cholesteatoma is displayed as a soft hemogenic tissue with bone degeneration in CT scan [ 6 ]. In MRI, Cholesterol granuloma generates a high signal in both T1 and T2 imaging which is enhanced after introducing contrast.…”

Section: Discussionmentioning

confidence: 99%

Endoscopic Transnasal Approach for Cholesterol Granuloma of the Petrous Apex

Samadian

Dilmaghani

Roozbahany

et al. 2015

Case Reports in Neurological Medicine

View full text Add to dashboard Cite

Cholesterol granulomas are rare round or ovoid cysts. They contain cholesterol crystals surrounded by foreign bodies of giant cells and are characterized by chronic inflammation. Large cholesterol granuloma can compress surrounding tissue especially cranial nerves. There are several types of surgery for the resection of cholesterol granuloma. We describe 4 cases of cholesterol granuloma operated on via transnasal endoscopic approach. In this report, we describe radiologic and pathologic features of this lesion and explain the advantages and disadvantages of transsphenoidal endoscopic approach for these rare lesions.

show abstract

“…Given the high diagnostic performance of non-echoplanar diffusion-weighted MRI, it is currently the modality of choice in detecting post-operative cholesteatoma and has been applied as an adjunct to CT in the assessment of primary cholesteatoma. 3 Diffusion-weighted MRI also performs well in depicting the size and extent of cholesteatoma. 4–5 However, bony anatomy is lacking on diffusion-weighted MRI, meaning precise disease localisation is challenging when planning surgery.…”

Section: Introductionmentioning

confidence: 99%

“…2 Diffusion-weighted magnetic resonance imaging (MRI), specifically non-echoplanar diffusion-weighted MRI, can reliably characterise cholesteatoma and differentiate it from soft tissue and fluid within the middle-ear cleft. 1–3 This is because cholesteatoma, by virtue of its keratin content, has high signal intensity on diffusion-weighted MRI images (b-value of 800 or 1000) due to a combination of restricted diffusion and T2 shine-through effect.…”

Section: Introductionmentioning

confidence: 99%

The utility of computed tomography and diffusion-weighted magnetic resonance imaging fusion in cholesteatoma: illustration with a UK case series

et al. 2020

View full text Add to dashboard Cite

ObjectivePost-processing imaging techniques allow high-resolution computed tomography and diffusion-weighted magnetic resonance imaging of the temporal bone to be superimposed and viewed simultaneously (fusion imaging). This study aimed to highlight the practical utility of fusion imaging for disease localisation and evaluation in a UK case series of primary and post-operative cholesteatoma.MethodFusion of computed tomography and diffusion-weighted magnetic resonance b1000 images was performed using specific software. Axial computed tomography images and coronal b1000 images were selected for fusion.ResultsA case series of primary and post-operative cholesteatoma in which computed tomography and magnetic resonance imaging fusion assisted the management of both the patient pathway and surgical approach is reviewed.ConclusionComputed tomography and magnetic resonance imaging fusion can assist in pre-operative surgical planning and patient counselling through assessment of disease in both primary and revision scenarios. Computed tomography and magnetic resonance imaging fusion can assist the operative surgeon through accurate localisation that can influence both the operative technique and optimise operation theatre utilisation.

show abstract

Staging primary middle ear cholesteatoma with non‐echoplanar (half‐Fourier‐acquisition single‐shot turbo‐spin‐echo) diffusion‐weighted magnetic resonance imaging helps plan surgery in 22 patients: Our experience

Cited by 25 publications

References 7 publications

Diffusion-Weighted Intensity Magnetic Resonance in the Preoperative Diagnosis of Cholesteatoma

Diffusion-Weighted Intensity Magnetic Resonance in the Preoperative Diagnosis of Cholesteatoma

Endoscopic Transnasal Approach for Cholesterol Granuloma of the Petrous Apex

The utility of computed tomography and diffusion-weighted magnetic resonance imaging fusion in cholesteatoma: illustration with a UK case series

Contact Info

Product

Resources

About