CT perfusion measurements of head and neck carcinoma from single section with largest tumor dimensions or average of multiple sections: Agreement between the two methods and effect on intra- and inter-observer agreement

Tawfik, Ahmed; Nour-Eldin, Nour-Eldin A.; Naguib, N; Razek, Ahmed Abdel Khalek Abdel; Denewer, Adel; Bisdas, Sotirios; Vogl, Thomas J.

doi:10.1016/j.ejrad.2011.11.012

Cited by 13 publications

(2 citation statements)

References 16 publications

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“…The feasibility of perfusion CT for evaluating prostate tumors has been shown by only a few studies [14][15][16]. The reason is technical: The lack of contrast resolution makes identification of cancer on unenhanced CT scans impossible, with the consequent inability to center the perfusion volume on the malignant areas [17]. It is only with scanners able to cover a volume of at least 4 cm (i.e., 64-MDCT) that it has become possible to analyze almost the entire gland and to calculate functional indexes.…”

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confidence: 99%

Perfusion MDCT of Prostate Cancer: Correlation of Perfusion CT Parameters and Immunohistochemical Markers of Angiogenesis

Osimani

Bellini²,

Cristofano³

et al. 2012

American Journal of Roentgenology

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confidence: 99%

Perfusion MDCT of Prostate Cancer: Correlation of Perfusion CT Parameters and Immunohistochemical Markers of Angiogenesis

Osimani

Bellini²,

Cristofano³

et al. 2012

American Journal of Roentgenology

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“…7 To minimize this pitfall, we tried to select a solid region of the tumor and the most homogeneous ROI to avoid selecting necrotic regions; meanwhile, users may prefer to choose different shape and size of a tumor ROI for the definition, although Tawfik et al showed both methods (single section with largest tumor dimensions or average of multiple sections) are acceptable. 16 However, TTP showed a statistically significant difference between PAs and MTs (p-value ¼ 0.016). Peak time in the PA was higher than in MTs.…”

Section: Discussionmentioning

confidence: 90%

Perfusion Computed Tomography Scan Imaging in Differentiation of Benign from Malignant Parotid Lesions

Niazi

Mohammadzadeh

Aghazadeh

et al. 2019

Int Arch Otorhinolaryngol

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Introduction The most common site of salivary gland tumors is the parotid gland. Computed tomography (CT), magnetic resonance imaging (MRI), and sonography are imaging modalities to differentiate benign from malignant parotid tumors. Objective The aim of this study is the evaluation of the diagnostic value of perfusion CT for differentiating histological categorization of benign and malignant parotid tumors. Methods A total of 29 patients with parotid neoplasms were enrolled in this study. Mean age and all CT perfusion variables (gradient and permeability, blood flow [BF], blood volume [BV], mean transit time [MTT], permeability surface [PS], maximum intensity projection [MIP], time-density curve [TDC], and time to peak [TTP]) were compared among three groups (malignant tumors [MTs], Warthin's tumor [WT] and pleomorphic adenomas [PA]). Results The mean age of the patients was 55.9 ± 14.1 (26–77), and 15 of them were male (51.7%). Eleven lesions were PAs [37.9%], 8 lesions were WTs (27.6%0 and 10 lesions (34.5%) were MTs (6 acinic cell carcinomas [ACCs], 3 adenocystic carcinomas [AdCCs], and 1 mucoepidermoid carcinoma [MEC]). The mean age of the patients with WTs was 62 ± 7.5 years; 52 ± 14.2 for patients with Pas, and 55.2 ± 17.2 for those with MTs (p = 0.32). The mean MIP was 122.7 ± 12.2 in WT, while it was 80.5 ± 19.5 in PA, and 76.2 ± 27.1 in MTs (p < 0.001); The mean MIP for WT was higher than for PAs and MTs; the values of MTs and PAs were not statistically different. The average of BF, BV, and curve peak were higher in WTs in comparison with the other two groups, and curve time 2 and TTP were higher in PAs in comparison with MTs. Conclusion Based on this study, perfusion CT of the parotid gland and its parameters can distinguish between benign and malignant parotid masses.

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Coronary artery disease imaging reporting and data system (CAD-RADS): what radiologists need to know?

Razek

Fahmy

2021

Emerg Radiol

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CT perfusion measurements of head and neck carcinoma from single section with largest tumor dimensions or average of multiple sections: Agreement between the two methods and effect on intra- and inter-observer agreement

Cited by 13 publications

References 16 publications

Perfusion MDCT of Prostate Cancer: Correlation of Perfusion CT Parameters and Immunohistochemical Markers of Angiogenesis

Perfusion MDCT of Prostate Cancer: Correlation of Perfusion CT Parameters and Immunohistochemical Markers of Angiogenesis

Perfusion Computed Tomography Scan Imaging in Differentiation of Benign from Malignant Parotid Lesions

Coronary artery disease imaging reporting and data system (CAD-RADS): what radiologists need to know?

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