Martinoli C, Giovagnorio F, Pretolesi F, Derchi L E
Cattedra "R" di Radiologia, DICMI, Università di Genova, Largo Rosanna Benzi 8, 1-16132 Genova, Italy.
AJR Am J Roentgenol. 2000 Nov;175(5):1357-60. doi: 10.2214/ajr.175.5.1751357.
The objective of our study was to determine the value of color Doppler imaging as an adjunct to gray-scale sonography to reveal the intra- or extraparotid origin of jugulodigastric nodules of uncertain location.
Forty nodules in the jugulodigastric area from 38 patients were imaged with gray-scale, color, and power Doppler sonography. Nodules receiving vessels from salivary glands were assumed to be intraglandular; those accepting vessels from paraparotid spaces were considered to arise from outside the gland. Imaging results were correlated with biopsy and surgical findings.
In 38 of 40 cases, color and power Doppler sonography displayed discrete feeding arteries leading to the nodules: 25 nodules had one supplying artery, nine received two arteries, and four had three or more arteries. Intraparotid nodules received vessels from the gland in 20 cases. In two cases, the source of vessels was indeterminate. In two malignant tumors, multiple arteries derived from both the parotid and the neck spaces. All 14 extraparotid nodules received the arterial supply from paraparotid spaces. Color Doppler sonography enabled prediction of the intraglandular location of the nodules in 91% of cases and the extraglandular location in 87.5% of cases. The correct diagnosis was achieved in 34 of 40 nodules, with a global accuracy of 85%.
Color Doppler sonography can help to assess the intra- or extraparotid location of jugulodigastric nodules. In practice, this technique can support the diagnosis when gray-scale sonography raises doubts about the origin of a jugulodigastric nodule.
我们研究的目的是确定彩色多普勒成像作为灰阶超声检查的辅助手段，用于揭示位置不明的颈内静脉二腹肌淋巴结位于腮腺内或腮腺外的价值。
对38例患者颈内静脉二腹肌区域的40个淋巴结进行灰阶、彩色和能量多普勒超声成像。接受来自唾液腺血管的淋巴结被认为位于腺体内；接受来自腮腺旁间隙血管的淋巴结被认为起源于腺体外部。将成像结果与活检及手术结果进行对比。
在40例中的38例中，彩色和能量多普勒超声显示有离散的供血动脉通向淋巴结：25个淋巴结有1条供血动脉，9个有2条供血动脉，4个有3条或更多供血动脉。20例腮腺内淋巴结接受来自腺体的血管。2例中血管来源不确定。在2例恶性肿瘤中，多条动脉来自腮腺和颈部间隙。所有14个腮腺外淋巴结均接受来自腮腺旁间隙的动脉供血。彩色多普勒超声能够在91%的病例中预测淋巴结的腺体内位置，在87.5%的病例中预测腺体外位置。40个淋巴结中有34个诊断正确，总体准确率为85%。
彩色多普勒超声有助于评估颈内静脉二腹肌淋巴结的腮腺内或腮腺外位置。在实际应用中，当灰阶超声对颈内静脉二腹肌淋巴结的起源存在疑问时，该技术可辅助诊断。
