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[Cervical lymph node metastases. The sonographic demonstration of malignancy]
H J Steinkamp1, N Hosten, R Langer
1Strahlenklinik und Poliklinik, Universitätsklinikum Rudolf Virchow, Standort Charlottenburg, Freie Universität Berlin.
Rofo : Fortschritte Auf Dem Gebiete Der Rontgenstrahlen Und Der Nuklearmedizin
|February 1, 1992
Summary
Sonography effectively detects cervical lymph node metastases using the transverse/longitudinal quotient. A quotient over 2 confirms malignancy with 96% assurance, improving diagnostic accuracy.
Area of Science:
- Medical Imaging
- Oncology
- Diagnostic Ultrasound
Background:
- Cervical lymph node metastases are a significant indicator of cancer spread.
- Accurate detection of these metastases is crucial for effective cancer staging and treatment planning.
Purpose of the Study:
- To evaluate the diagnostic value of sonography in identifying cervical lymph node metastases.
- To compare the efficacy of transverse/longitudinal quotient versus longitudinal measurements for malignancy assessment.
Main Methods:
- Sonographic measurements (longitudinal and transverse) of cervical lymph nodes were analyzed.
- A transverse/longitudinal quotient was calculated to assess malignancy criteria.
- Sensitivity, specificity, and accuracy of sonographic methods were determined.
Main Results:
- A transverse/longitudinal quotient greater than 2 indicated metastases with 96% assurance.
- Using only longitudinal measurements, metastases could only be excluded with 36% assurance.
- The maximal transverse quotient method demonstrated 95% sensitivity and 96% specificity, yielding 95% overall accuracy.
Conclusions:
- Sonography, particularly using the maximal transverse quotient, is a highly accurate tool for diagnosing cervical lymph node metastases.
- The transverse/longitudinal quotient significantly enhances diagnostic confidence and accuracy compared to longitudinal measurements alone.