Correlation of preoperative HRCT findings with surgical findings in Unsafe CSOM

Datta, Ginni; Mohan, C. Raja; Mahajan, Monika; Mendiratta, Vandana

doi:10.9790/0853-1319120125

Cited by 22 publications

(42 citation statements)

References 14 publications

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“…HRCT accurately predicted 94% of cases of incus erosion. Incus is the most eroded ossicle in our study similar to reports by Amit Shankhwar et al 13 and Rohit Vallabhaneni et al 14 Sonika Kanotra et al 15 Datta et al 16 and Rai et al 17 observed slightly low sensitivity of 87% and 85%. HRCT accurately predicted in 43% of cases of malleus erosion which was found to be eroded intraoperatively as well.…”

Section: Discussionsupporting

confidence: 90%

“…Sonika Kanotra et al 15 reported a sensitivity of 100% in detecting tegmen tympani erosion by HRCT which was higher than the current study. A similar specificity rate of 95% was reported by Gerami et al 27 and negative predictive value of 100% was reported by Prata et al 28 and Datta et al 16 A poor sensitivity rate of HRCT to detect tegmen tympani erosion was also reported by Jackler et al 29 and O'Reilly et al 30 , while a moderate association was seen by Vlastarakos et al 31 and Chee and Tan et al 25 Suat Keskin et al 22 reported that out of 11 cases diagnosed as tegmen tympani erosion by HRCT there was no erosions noted intraoperatively and missed one case which was found to be eroded intraoperatively. And states that the poor radiosurgical correlation for tegmen tympani erosion may be due to partial volume of both the tympanic cavity and cerebral soft tissue may be overestimated as a defect on coronal sections which became thinned as a result of chronic inflammatory processes.…”

Section: Discussionsupporting

confidence: 85%

“…Sensitivity and specificity of various temporal bone components were listed for comparison. Note SN-sensitivity, SP-specificity, NA-Not Available.while Datta et al16 and Sunita, M et al 21 , Alzoubi et al 24 , Chee and Tan et al 25 , Mafee et al…”

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confidence: 99%

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High Resolution CT Imaging in Pathologies of Temporal Bone

Chidambaram¹,

R²,

Vinayagam³

et al. 2019

IJCMSR

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This was a prospective study, done in our institution from January 2016 to August 2017 with a sample size of 90, after due clearance from the institutional ethical committee. Written informed consent was obtained from all patients prior to the study procedure or data collection. Patients of all age group with ear complaints, such as hearing loss, pain, vertigo, ear discharge and tinnitus referred for HRCT temporal bone were included. Patients with a recent history A B S T R A C T Introduction: Diseases of the ear are a common clinical problem, encountered in every day. Clinical examination alone is not sufficient in present days, owing to prevalence, complications and recurrence of various pathologies of the temporal bone, imaging plays a major role in the management and influences the treatment. High-resolution computed tomography (HRCT) offers an excellent resolution, allowing a better understanding of the aetiology, pathology, disease course with early detection of complications. The prospective study aimed to study pathologies of the temporal bone along with their complications on HRCT and to correlate with their surgical findings. Material and Methods: A prospective study done with a sample size of 90 patients with ear complaints, such as hearing loss, pain, vertigo, ear discharge and tinnitus and referred for HRCT temporal bone were included. Ear trauma and head injury, pregnant women and those unwilling to give consent were excluded. HRCT was done using a GE 128 Slice CT scanner and were followed up for surgical or medical methods of management. Images are reconstructed in the ultra-sharp bone algorithm for image reconstruction, analysed for reporting. The intraoperative findings such as middle ear soft tissue density, ossicular erosion, erosion of scutum, tegmen tympani and facial canal, fistulous communication between the middle ear and lateral and posterior semicircular canal. Above findings were analyzed using standard statistical methods. Results: There is an excellent radio-surgical correlation in diagnosing and differentiating cholesteatoma from granulation tissue, identifying malleus erosion, incus erosion, tegmen tympani erosion, scutum erosion, EAC erosion, sigmoid plate dehiscence, high riding jugular bulb, mastoid status/erosion. Moderate to poor radio-surgical correlation was noted in identifying LSCC fistula, stapes erosion and facial canal erosion. Conclusion: HRCT is a valuable imaging modality through which pre-operative assessment of temporal bone pathologies can be done efficiently with reasonable accuracy, cost and precision for making surgical decisions. Hence it helps the surgeon to decide the course of action in particular clinical problem.

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Section: Discussionsupporting

confidence: 90%

Section: Discussionsupporting

confidence: 85%

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High Resolution CT Imaging in Pathologies of Temporal Bone

Chidambaram¹,

R²,

Vinayagam³

et al. 2019

IJCMSR

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“…14 Acquired cholesteatomas are commonly seen in patients less than 30 years. 14 In present study, we found that the majority of patients were aged less than 30 years (n=42; 70%), which are similar to findings by Datta et al 15 …”

Section: Agesupporting

confidence: 81%

Role of High Resolution Computed Tomography in the Evaluation of Suppurative Diseases of Middle Ear and Mastoids and Their Complications With Surgical Correlation

Boruah¹,

Sharma²,

Sanyal³

et al. 2016

jemds

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OBJECTIVEHigh Resolution Computed Tomography (HRCT), a modification of routine CT, provides a direct visual window in the temporal bone providing minute structural details. Purpose of the present study was to evaluate the suppurative diseases of middle ear and mastoid with their complications on HRCT and to correlate these imaging findings surgically. Our study shows good correlation of various HRCT findings in suppurative diseases of middle ear & mastoids with intra-operative findings. MATERIALS AND METHODSThis retrospective study included 60 patients who were referred to the Department of Radiodiagnosis, Assam Medical College with clinically suspected temporal bone or ear pathologies. After detailed clinical examination, the patients were subjected to HRCT examination. The imaging findings of all cases were correlated with the surgical findings. RESULTSOut of 60 patients, 63.3% had unsafe CSOM with cholesteatoma. The HRCT findings with surgical correlation showed a high 91.89% sensitivity for identifying cholesteatoma. HRCT also provided good sensitivity for detecting erosion of scutum (90.32%), erosion of ossicular chain (86.96%) and erosion of lateral semi-circular canal (80%). HRCT had lower sensitivity (66.67%) for identifying facial canal dehiscence. CONCLUSIONThe HRCT findings showed a good sensitivity with intraoperative findings in identification of cholesteatoma, erosion of scutum, ossicular chain and semi-circular canal.

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“…It assists the surgeon to take decision regarding the type of surgical procedure, canal wall up or canal wall down. 5 Since ossicles are commonly eroded, prognosis of hearing can be predicted. 6 In HRCT temporal bone hallmarks of cholesteatoma are soft tissue mass like opacity in middle ear cleft associated with erosion of ossicles, smooth bony erosions and surrounding structures.…”

Section: Introductionmentioning

confidence: 99%

An evaluation of preoperative high resolution computed tomography of temporal bone in cholesteatoma

Khavasi

Malashetti

Chandrashekarayya

2018

Int J Otorhinolaryngol Head Neck Surg

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Background: Cholesteatoma is relatively common and potentially dangerous disease of the ear. It is characterised by local destruction and osseous erosion leading to complications. High resolution computed tomography (HRCT) is the imaging modality of choice for evaluation of middle ear structures and pathology. The aim of this study is to evaluate role of preoperative HRCT in the diagnosis of the disease, its extension and complications and plan for surgery.Methods: This prospective study was conducted at a tertiary referral teaching hospital and 40 cases of cholesteatoma were selected and their pre-operative HRCT temporal bone findings and intraoperative findings were correlated. Results: This study showed good correlation between preoperative HRCT findings of cholesteatoma, and intraoperative findings. Conclusions: We conclude therefore the preoperative HRCT temporal bone is useful guide for the surgeon for the diagnosis and management of cholesteatoma.

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Correlation of preoperative HRCT findings with surgical findings in Unsafe CSOM

Cited by 22 publications

References 14 publications

High Resolution CT Imaging in Pathologies of Temporal Bone

High Resolution CT Imaging in Pathologies of Temporal Bone

Role of High Resolution Computed Tomography in the Evaluation of Suppurative Diseases of Middle Ear and Mastoids and Their Complications With Surgical Correlation

An evaluation of preoperative high resolution computed tomography of temporal bone in cholesteatoma

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