Detection and Characterization of Metastatic Cervical Adenopathy by MR Imaging
| Autor: | van den Brekel Mw, G. A. Croll, Jacob Valk, Stel Hv, Gordon B. Snow, Jonas A. Castelijns, W. J. Luth, C. J. L. M. Meyer, R. P. Golding |
|---|---|
| Rok vydání: | 1990 |
| Předmět: |
Adult
Gadolinium DTPA Male medicine.medical_specialty medicine.medical_treatment Contrast Media Gadolinium Metastasis Organometallic Compounds medicine Humans Radiology Nuclear Medicine and imaging Aged medicine.diagnostic_test business.industry Magnetic resonance imaging Neck dissection Middle Aged Pentetic Acid medicine.disease Magnetic Resonance Imaging Central lymph Sagittal plane medicine.anatomical_structure Head and Neck Neoplasms Lymphatic Metastasis Coronal plane Carcinoma Squamous Cell Spin echo Neck Dissection Female Lymph Nodes Radiology Lymph business Neck |
| Zdroj: | Journal of Computer Assisted Tomography. 14:581-589 |
| ISSN: | 0363-8715 |
| Popis: | Thirty-five patients scheduled to undergo a neck dissection for squamous cell carcinoma of the head and neck were evaluated preoperatively by magnetic resonance (MR) imaging. Axial and occasionally sagittal and coronal images were obtained. To define the most reliable technique to detect cervical lymph node metastasis, we compared several MR pulse sequences with and without Gd-DTPA administration to histopathologic findings in the neck dissection specimens. T1-weighted spin echo combined with T2-weighted gradient recalled echo (GE) sequences were found to be more useful than any other combination of pulse sequences in localizing lymph nodes. On T2-weighted GE images, lymph nodes were depicted with intermediate to high signal intensity in contrast to low signal muscular and fatty tissue. Gadolinium DTPA enhanced T1-weighted GE images reliably depict central lymph node necrosis, the most specific criterion for lymph node metastasis. |
| Databáze: | OpenAIRE |
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