A new breast tomosynthesis imaging method : Continuous Sync-and-Shoot - technical feasibility and initial experience

Show full item record



Permalink

http://hdl.handle.net/10138/302297

Citation

Jousi , M O , Erkkilä , J , Varjonen , M , Soiva , M , Hukkinen , K & Sequeiros , R B 2019 , ' A new breast tomosynthesis imaging method : Continuous Sync-and-Shoot - technical feasibility and initial experience ' , Acta Radiologica Open , vol. 8 , no. 3 , 2058460119836255 . https://doi.org/10.1177/2058460119836255

Title: A new breast tomosynthesis imaging method : Continuous Sync-and-Shoot - technical feasibility and initial experience
Author: Jousi, Mikko O.; Erkkilä, Jukka; Varjonen, Mari; Soiva, Martti; Hukkinen, Katja; Sequeiros, Roberto Blanco
Contributor: University of Helsinki, HYKS erva
University of Helsinki, HYKS erva
University of Helsinki, Department of Diagnostics and Therapeutics
Date: 2019-03-15
Language: eng
Number of pages: 9
Belongs to series: Acta Radiologica Open
ISSN: 2058-4601
URI: http://hdl.handle.net/10138/302297
Abstract: Background Digital breast tomosynthesis (DBT) is gaining popularity in breast imaging. There are several different technical approaches for conducting DBT imaging. Purpose To determine optimal imaging parameters, test patient friendliness, evaluate the initial diagnostic performance, and describe diagnostic advances possible with the new Continuous Sync-and-Shoot method. Material and Methods Thirty-six surgical breast specimens were imaged with digital mammography (DM) and a prototype of a DBT system (Planmed Oy, Helsinki, Finland). We tested the patient friendliness of the sync-and-shoot movement without radiation exposure in eight volunteers. Different imaging parameters were tested with 20 specimens to identify the optimal combination: angular range 30 degrees, 40 degrees, and 60 degrees; pixel binning; Rhodium (Rh) and Silver (Ag) filtrations; and different kV and mAs values. Two breast radiologists evaluated 16 DM and DBT image pairs and rated six different image properties. Imaging modalities were compared with paired t-test. Results The Continuous Sync-and-Shoot method produced diagnostically valid images. Five out of eight volunteers felt no/minimal discomfort, three experienced mild discomfort from the tilting movement of the detector, with the motion being barely recognized. The combination of 30 degrees, Ag filtering, and 2 x 2 pixel binning produced the best image quality at an acceptable dose level. DBT was significantly better in all six evaluated properties (P <0.05). Mean Dose(DBT)/Dose(DM) ratio was 1.22 (SD = 0.42). Conclusion The evaluated imaging method is feasible for imaging and analysing surgical breast specimens and DBT is significantly better than DM in image evaluation.
Subject: Breast tomosynthesis
feasibility
diagnostic performance
breast specimen
breast cancer
DIGITAL MAMMOGRAPHY FFDM
POPULATION
COMBINATION
2-VIEW
CALCIFICATIONS
CLASSIFICATION
PERFORMANCE
TRIAL
3126 Surgery, anesthesiology, intensive care, radiology
Rights:


Files in this item

Total number of downloads: Loading...

Files Size Format View
2058460119836255.pdf 807.5Kb PDF View/Open

This item appears in the following Collection(s)

Show full item record