Related Experiment Video
Updated: Jul 29, 2026

The Application of 1% Methylene Blue Dye As a Single Technique in Breast Cancer Sentinel Node Biopsy
Published on: June 1, 2019
Is the upright position more sensitive than the supine position in breast cancer sentinel node lymphoscintigraphy?
1Department of Nuclear Medicine, William Beaumont Hospital, Royal Oak, Michigan 48073-6769, USA.
Purpose:
The authors compared the supine and standing positions for lymphoscintigraphy in breast cancer patients to identify any changes in the number of affected lymph nodes detected and the quality of images.
Methods:
Twenty-three patients were examined using lymphoscintigraphy in both positions. Sequential supine, standing, and supine oblique images were acquired in each patient.
Results:
The number of lymph nodes detected or the quality of the images acquired was improved in 20 of the 23 patients in the standing position compared with the supine position. The remaining three patients' images were judged to be equal in lymph node number and image quality in both positions.
Conclusions:
Lymphoscintigraphy in patients with breast cancer appears to be more sensitive in the standing than in the supine position.
Related Concept Videos
Anatomical Positions
The body is upright, facing forward, and standing erect.
The feet are parallel and flat on the floor.
The arms are hanging by the...
Radiological Investigation III: Pulmonary Angiogram and PET Scan
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...

