Role of Superb Micro‐Vascular Imaging in the Preoperative Evaluation of Thyroid Nodules: Comparison With Power Doppler Flow Imaging

Objectives To evaluate whether Superb Micro‐Vascular Imaging (SMI; Toshiba Medical Systems Corporation, Tochigi, Japan) is superior to power Doppler flow imaging (PDFI) in depicting thyroid nodular vascularity and to primarily explore the diagnostic performance of vascularity on SMI integrated with...

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Bibliographic Details
Published in:Journal of ultrasound in medicine 2017-07, Vol.36 (7), p.1329-1337
Main Authors: Kong, Jing, Li, Jian‐chu, Wang, Hong‐yan, Wang, Ya‐hong, Zhao, Rui‐na, Zhang, Ying, Jin, Jin
Format: Article
Language:English
Subjects:
Adult
Aged
Echocardiography, Doppler, Color - methods
Female
head and neck ultrasound
Humans
Image Enhancement - methods
Male
Microvessels - diagnostic imaging
Middle Aged
Neovascularization, Pathologic - complications
Neovascularization, Pathologic - diagnostic imaging
Preoperative Care - methods
Prognosis
Reproducibility of Results
Retrospective Studies
Sensitivity and Specificity
sonography
Superb Micro‐Vascular Imaging
thyroid
Thyroid Nodule - complications
Thyroid Nodule - diagnostic imaging
Thyroid Nodule - surgery
vascularity
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Summary:Objectives To evaluate whether Superb Micro‐Vascular Imaging (SMI; Toshiba Medical Systems Corporation, Tochigi, Japan) is superior to power Doppler flow imaging (PDFI) in depicting thyroid nodular vascularity and to primarily explore the diagnostic performance of vascularity on SMI integrated with grayscale sonographic features for diagnosis of malignant thyroid nodules. Methods Ninety‐two resident patients with 113 nodules for surgery were included in the study. Thirty‐four nodules were benign, and 79 nodules were malignant. Vascularity was classified as none, peripheral, mixed, and intranodular. Grayscale features, including calcifications, echogenicity, margins, shape, and internal components, were evaluated. The distribution of vascular patterns was compared between PDFI and SMI to determine the superior technique for diagnosing malignancy. A multivariate logistic regression analysis was used to evaluate the accuracy of SMI combined with grayscale sonography for thyroid malignancy. Results The 92 patients had a male‐to‐female ratio of 12:11 and a median age of 42 years (range, 20–75 years). Intranodular vascularity on SMI had 91.2% specificity and 75.9% sensitivity, which were superior to PDFI, at 82.3% and 41.8%, respectively (P 
ISSN:0278-4297
1550-9613
DOI:10.7863/ultra.16.07004