Value of diffusion-weighted imaging to detect small malignant pelvic lymph nodes at 3 T.
Objective: To investigate the usefulness of diffusion-weighted imaging (DWI) to discriminate between metastatic and non-metastatic small lymph nodes in pelvic carcinoma.Materials and Methods: A total of 259 patients (180 normal, 79 metastatic) prospectively underwent DWI at 3 T. We measured the shor...
| Publicado en: | European Radiology Vol. 20; no. 8; pp. 1803 - 1812 |
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| Autores principales: | , , , , , , , , , |
| Formato: | research Journal Article |
| Publicado: |
Springer Nature
Aug2010
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=104912160&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 104912160 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 09387994 NPH jtl: European Radiology issn: 09387994 maglogo: N pubinfo: dt: Aug2010 vid: 20 iid: 8 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 104912160 51989463 NLM20182732 2010709982 10.1007/s00330-010-1736-4 NLM20182732 104912160 ppf: 1803 ppct: 9 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Value of diffusion-weighted imaging to detect small malignant pelvic lymph nodes at 3 T. aug: au: Roy C Bierry G Matau A Bazille G Pasquali R Roy, Catherine Bierry, Guillaume Matau, Andrea Bazille, Gauthier Pasquali, Rémy affil: Department of Radiology B, Universitary Hospital of Strasbourg, Strasbourg, France sug: subj: Magnetic Resonance Imaging Methods Lymph Nodes Pathology Pelvic Neoplasms Diagnosis Pelvic Neoplasms Adult Aged Female Human Neoplasm Metastasis Male Middle Age Reproducibility of Results Sensitivity and Specificity Adult: 19-44 years Aged: 65+ years Middle Aged: 45-64 years Female Male ab: Objective: To investigate the usefulness of diffusion-weighted imaging (DWI) to discriminate between metastatic and non-metastatic small lymph nodes in pelvic carcinoma.Materials and Methods: A total of 259 patients (180 normal, 79 metastatic) prospectively underwent DWI at 3 T. We measured the short-axis diameter and the mean apparent diffusion coefficient (ADC) value. Lymph nodes with a short-axis diameter larger than 8 mm were recorded as being suspected metastatic lymph nodes. Imaging data were correlated station by station with histopathological results.Results: A total of 140 metastatic nodes were accurately matched with histology. On T2w, the short-axis diameter for non-metastatic and metastatic lymph nodes was 6.4 mm +/- 2.5 mm and 8.3 mm +/- 4.5 mm, respectively. Almost all metastatic or non-metastatic nodes had similar high signal intensity on DWI (except in 5 cases) with a homogeneous pattern. The mean ADC values (10(-3) mm(3)/s +/- standard deviation) of involved lymph nodes, control iliac nodes and control inguinal nodes were 924 +/- 217, 968 +/- 182 and 1,036 +/- 181, respectively. There were no statistically significant differences in the ADC of metastatic and non-metastatic nodes.Conclusion: Isolated measurement of mean ADC values in a suspected station does not contribute to the diagnosis of metastatic nodes, in patients with small ambiguous nodes. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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