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1. WO2021061346 - MOTION DETECTION FOR INTERNAL BREAST TISSUE IN TOMOSYNTHESIS

Publication Number WO/2021/061346
Publication Date 01.04.2021
International Application No. PCT/US2020/048762
International Filing Date 31.08.2020
IPC
A61B 6/02 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
6Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
02Devices for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
A61B 6/00 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
6Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
G06T 7/246 2017.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
7Image analysis
20Analysis of motion
246using feature-based methods, e.g. the tracking of corners or segments
CPC
A61B 6/025
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
6Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
02Devices for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
025Tomosynthesis
A61B 6/0414
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
6Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
04Positioning of patients; Tiltable beds or the like
0407Supports, e.g. tables or beds, for the body or parts of the body
0414with compression means
A61B 6/502
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
6Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
50Clinical applications
502involving diagnosis of breast, i.e. mammography
A61B 6/5264
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
6Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
52Devices using data or image processing specially adapted for radiation diagnosis
5258involving detection or reduction of artifacts or noise
5264due to motion
G06T 2207/10112
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
2207Indexing scheme for image analysis or image enhancement
10Image acquisition modality
10072Tomographic images
10112Digital tomosynthesis [DTS]
G06T 2207/10116
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
2207Indexing scheme for image analysis or image enhancement
10Image acquisition modality
10116X-ray image
Applicants
  • HOLOGIC, INC. [US]/[US]
Inventors
  • REN, Baorui
Agents
  • SMITH, Ryan C.
  • MERCHANT & GOULD P.C.
  • BRUESS, Steven C.
  • JAGENOW, Andrew L.
  • WAGNER, Michael S.
Priority Data
62/907,07927.09.2019US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) MOTION DETECTION FOR INTERNAL BREAST TISSUE IN TOMOSYNTHESIS
(FR) DÉTECTION DE MOUVEMENT POUR TISSU MAMMAIRE INTERNE EN TOMOSYNTHÈSE
Abstract
(EN)
Methods and systems for identifying internal motion of a breast of a patient during an imaging procedure. The method may include compressing the breast of the patient in a mediolateral oblique (MLO) position. During compression of the breast, a first tomosynthesis MLO projection frame for a first angle with respect the breast is acquired and a second tomosynthesis MLO projection frame for a second angle with respect to the breast is acquired. Boundaries of the pectoral muscle are identified in the projection frames and boundary representations are generated. A difference between the first representation and the second representation is determined. A motion score is then generated based on at least the difference between the first representation and the second representation.
(FR)
Procédés et systèmes permettant d'identifier un mouvement interne d'un sein d'un patient pendant une procédure d'imagerie. Le procédé peut comprendre la compression du sein du patient dans une position oblique médio-latérale (MLO). Pendant la compression du sein, une première trame de projection MLO de tomosynthèse pour un premier angle par rapport au sein est acquise et une seconde trame de projection MLO de tomosynthèse pour un second angle par rapport au sein est acquise. Les limites du muscle pectoral sont identifiées dans les trames de projection et des représentations des limites sont générées. Une différence entre la première représentation et la seconde représentation est déterminée. Un score de mouvement est ensuite généré sur la base au moins de la différence entre la première représentation et la seconde représentation.
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