Recidivous cholesteatoma: DWI MR after canal wall up and canal wall down mastoidectomy

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00098892%3A_____%2F16%3AN0000061" target="_blank" >RIV/00098892:_____/16:N0000061 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989592:15110/16:33160910

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Recidivous cholesteatoma: DWI MR after canal wall up and canal wall down mastoidectomy

Popis výsledku v původním jazyce

OBJECTIVES: To investigate the correlation between preoperative non-echo planar diffusion-weighted (non-EPI DWI) MR imaging with surgical fi ndings of recidivous middle ear cholesteatoma after canal wall up (CWU) and canal wall down (CWD) mastoidectomy. BACKGROUND: The detection of recidive cholesteatoma after CWU and after CWD procedures, when the trepanation cavity is spontaneously closed by soft tissue, is possible by second-look and revision surgery. However, many cases prove to be negative of the disease. To avoid unnecessary operational risks we adopted a novel imaging method to evaluate its potential in the detection of recidivous cholesteatoma. MATERIAL AND METHODS: The prospective study included 27 cases. Fifteen cases were revised after CWD and 12 cases were second-look surgeries after CWU procedures. All patients underwent the MR protocol: T2-weighted, T1-weighted and non-EPI DWI. The fi nding on MR correlated with peroperative presence of cholesteatoma. RESULTS: Non-EPI DWI sequence showed an increased signal intensity in 16/27 (59 %) cases. This correlated with surgical fi ndings in all 7 patients after CWU and in 8 patients after CWD. The overall sensitivity, specifi city, positive and negative predictive values of non-EPI DWI were 83.3 %, 88.8 %, 93.8 % and 72.7 %, respectively. DWI presented a sensitivity of 100 % and specifi city of 85.7 % in the subgroup of patients after CWD mastoidectomy. CONCLUSION: Residual and/or recurrent cholesteatoma can be accurately detected by DWI MR. It can be used as a screening method to select patients, who are indicated to second-look or revision surgery after CWU and CWD mastoidectomy (Tab. 1, Fig. 3, Ref. 49).

Název v anglickém jazyce

Recidivous cholesteatoma: DWI MR after canal wall up and canal wall down mastoidectomy

Popis výsledku anglicky

OBJECTIVES: To investigate the correlation between preoperative non-echo planar diffusion-weighted (non-EPI DWI) MR imaging with surgical fi ndings of recidivous middle ear cholesteatoma after canal wall up (CWU) and canal wall down (CWD) mastoidectomy. BACKGROUND: The detection of recidive cholesteatoma after CWU and after CWD procedures, when the trepanation cavity is spontaneously closed by soft tissue, is possible by second-look and revision surgery. However, many cases prove to be negative of the disease. To avoid unnecessary operational risks we adopted a novel imaging method to evaluate its potential in the detection of recidivous cholesteatoma. MATERIAL AND METHODS: The prospective study included 27 cases. Fifteen cases were revised after CWD and 12 cases were second-look surgeries after CWU procedures. All patients underwent the MR protocol: T2-weighted, T1-weighted and non-EPI DWI. The fi nding on MR correlated with peroperative presence of cholesteatoma. RESULTS: Non-EPI DWI sequence showed an increased signal intensity in 16/27 (59 %) cases. This correlated with surgical fi ndings in all 7 patients after CWU and in 8 patients after CWD. The overall sensitivity, specifi city, positive and negative predictive values of non-EPI DWI were 83.3 %, 88.8 %, 93.8 % and 72.7 %, respectively. DWI presented a sensitivity of 100 % and specifi city of 85.7 % in the subgroup of patients after CWD mastoidectomy. CONCLUSION: Residual and/or recurrent cholesteatoma can be accurately detected by DWI MR. It can be used as a screening method to select patients, who are indicated to second-look or revision surgery after CWU and CWD mastoidectomy (Tab. 1, Fig. 3, Ref. 49).

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

FF - ORL, oftalmologie, stomatologie

OECD FORD obor

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Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Bratislavské lekárske listy

ISSN

0006-9248

e-ISSN

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Svazek periodika

117

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

SK - Slovenská republika

Počet stran výsledku

1

Strana od-do

515-515

Kód UT WoS článku

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EID výsledku v databázi Scopus

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