CT Perfusion of the Neck: Internal Carotid Artery versus External Carotid Artery as the Reference Artery

Miracle, Aaron C.; Rezaei, Ali; Gandhi, Dheeraj; Mukherji, S K

doi:10.3174/ajnr.a1531

Cited by 7 publications

(3 citation statements)

References 9 publications

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“…So, before the perfusion scanning, it is necessary to take off the false teeth and ask the patient not to swallow to limit laryngeal motion. In contrast to previous studies of head and neck tumours using CTP, 7,[11][12][13][14] this study focused on the evaluation of the TDC patterns and perfusion parameters in different parotid pathological entities. All lesions showed one of the four types of TDCs in this study.…”

Section: Discussionmentioning

confidence: 99%

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Diagnostic value of CT perfusion imaging for parotid neoplasms

Dong

Gw²,

Sw³

et al. 2014

Dentomaxillofacial Radiology

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Objectives: To assess the value of CT perfusion imaging in the differentiation of different histological categorization of benign tumours from malignant tumours in patients with parotid neoplasms. Methods: CT perfusion was successfully performed in 62 patients with parotid neoplasms whose diagnoses were confirmed by surgery or biopsy. The software generated a tissue time-density curve (TDC) and measured blood volume, blood flow, mean transit time and capillary permeability surface product. One-way ANOVA and receiver operating characteristic curves were used to analyse the difference and diagnostic efficacies of all perfusion data between each one of the benign tumours and malignancies. Statistical significance was assigned at the 5% level. Results: Pleomorphic adenomas mainly had a gradually ascending TDC. Warthin tumours showed a fast ascent followed by a fast descent. The TDC of basal cell adenomas had a fast ascension followed by a plateau, then a gradual descent. Malignant tumours mainly showed a rapidly ascending curve with a stable plateau. Significant differences were observed in blood flow, blood volume and mean transit time between pleomorphic adenomas and malignant tumours (p , 0.05) as well as in blood flow and blood volume between the Warthin tumours, the basal cell adenomas and the malignant tumours (p , 0.05). Differences in permeability surface between the basal cell adenomas and malignant tumours were significant (p , 0.01). Conclusion: CT perfusion of parotid gland could provide TDC and perfusion data, which were useful in the differentiation of different histological benign tumours and malignant tumours in the parotid gland.

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Section: Discussionmentioning

confidence: 99%

“…[7][8][9][10] CTP is now recognized as an important method that can provide valuable information in patients with head and neck masses. 7,[11][12][13][14] The purpose of this study is to investigate the TDC types and perfusion parameters in the diagnosis and differentiation of parotid lesions.…”

Section: Introductionmentioning

confidence: 99%

Diagnostic value of CT perfusion imaging for parotid neoplasms

Dong

Gw²,

Sw³

et al. 2014

Dentomaxillofacial Radiology

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show abstract

“…Although some authors have found a correlation between CT perfusion values obtained by placing an ROI in the internal and the external carotid artery [30], others have detected a mismatch between the same values derived with the arterial ROI being traced over the external carotid artery ipsilateral or contralateral to the tumor, respectively [31]. Because, to our knowledge, no agreement has been reached about the most appropriate location of the arterial ROI, we believe that it is reasonable to draw it on the common or Fig.…”

Section: Computation Of Perfusion Parametersmentioning

confidence: 99%