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PMID- 28415974
OWN - NLM
STAT- MEDLINE
DA  - 20170418
DCOM- 20170418
LR  - 20170421
IS  - 1471-2407 (Electronic)
IS  - 1471-2407 (Linking)
VI  - 17
IP  - 1
DP  - 2017 Apr 17
TI  - Evaluation of the association between quantitative mammographic density and
      breast cancer occurred in different quadrants.
PG  - 274
LID - 10.1186/s12885-017-3270-0 [doi]
AB  - BACKGROUND: To investigate the relationship between mammographic density measured
      in four quadrants of a breast with the location of the occurred cancer. METHODS: 
      One hundred and ten women diagnosed with unilateral breast cancer that could be
      determined in one specific breast quadrant were retrospectively studied. Women
      with previous cancer/breast surgery were excluded. The craniocaudal (CC) and
      mediolateral oblique (MLO) mammography of the contralateral normal breast were
      used to separate a breast into 4 quadrants: Upper-Outer (UO), Upper-Inner (UI),
      Lower-Outer (LO), and Lower-Inner (LI). The breast area (BA), dense area (DA),
      and percent density (PD) in each quadrant were measured by using the
      fuzzy-C-means segmentation. The BA, DA, and PD were compared between patients who
      had cancer occurring in different quadrants. RESULTS: The upper-outer quadrant
      had the highest BA (37 +/- 15 cm2) and DA (7.1 +/- 2.9 cm2), with PD = 20.0 +/-
      5.8%. The order of BA and DA in the 4 separated quadrants were: UO > UI > LO >
      LI, and almost all pair-wise comparisons showed significant differences. For
      tumor location, 67 women (60.9%) had tumor in UO, 16 (14.5%) in UI, 7 (6.4%) in
      LO, and 20 (18.2%) in LI quadrant, respectively. The estimated odds and the 95%
      confidence limits of tumor development in the UO, UI, LO and LI quadrants were
      1.56 (1.06, 2.29), 0.17 (0.10, 0.29), 0.07 (0.03, 0.15), and 0.22 (0.14, 0.36),
      respectively. In these 4 groups of women, the order of quadrant BA and DA were
      all the same (UO > UI > LO > LI), and there was no significant difference in BA, 
      DA or PD among them (all p > 0.05). CONCLUSIONS: Breast cancer was most likely to
      occur in the UO quadrant, which was also the quadrant with highest BA and DA; but
      for women with tumors in other quadrants, the density in that quadrant was not
      the highest. Therefore, there was no direct association between quadrant density 
      and tumor occurrence.
FAU - Chan, Siwa
AU  - Chan S
AD  - Graduate Institute of Biomedical Electronics and Bioinformatics, National Taiwan 
      University, Taipei, Taiwan.
AD  - Department of Medical Imaging, Tzu Chi General Hospital, Taichung, Taiwan.
AD  - Department of Radiology, Taichung Veterans General Hospital, Taichung, Taiwan.
FAU - Chen, Jeon-Hor
AU  - Chen JH
AD  - Center for Functional Onco-Imaging, Department of Radiological Sciences,
      University of California, Irvine, CA, USA. [email protected]
AD  - Department of Radiology, E-Da Hospital and I-Shou University, Kaohsiung, Taiwan. 
      [email protected]
AD  - John Tu and Thomas Yuen Center for Functional Onco-Imaging, University of
      California Irvine, No. 164, Irvine Hall, Irvine, CA, 92697-5020, USA.
      [email protected]
FAU - Li, Shunshan
AU  - Li S
AD  - Center for Functional Onco-Imaging, Department of Radiological Sciences,
      University of California, Irvine, CA, USA.
FAU - Chang, Rita
AU  - Chang R
AD  - Center for Functional Onco-Imaging, Department of Radiological Sciences,
      University of California, Irvine, CA, USA.
FAU - Yeh, Darh-Cherng
AU  - Yeh DC
AD  - Breast Cancer Center, Tzu Chi General Hospital, Taichung, Taiwan.
FAU - Chang, Ruey-Feng
AU  - Chang RF
AD  - Graduate Institute of Biomedical Electronics and Bioinformatics, National Taiwan 
      University, Taipei, Taiwan.
FAU - Yeh, Lee-Ren
AU  - Yeh LR
AD  - Department of Radiology, E-Da Hospital and I-Shou University, Kaohsiung, Taiwan.
FAU - Kwong, Jessica
AU  - Kwong J
AD  - Center for Functional Onco-Imaging, Department of Radiological Sciences,
      University of California, Irvine, CA, USA.
FAU - Su, Min-Ying
AU  - Su MY
AD  - Center for Functional Onco-Imaging, Department of Radiological Sciences,
      University of California, Irvine, CA, USA.
LA  - eng
PT  - Journal Article
DEP - 20170417
PL  - England
TA  - BMC Cancer
JT  - BMC cancer
JID - 100967800
SB  - IM
MH  - Adult
MH  - Aged
MH  - Aged, 80 and over
MH  - Algorithms
MH  - Breast/*cytology/*diagnostic imaging/pathology
MH  - Breast Neoplasms/*diagnostic imaging/*pathology
MH  - Carcinoma, Ductal, Breast/diagnostic imaging/pathology
MH  - Female
MH  - Humans
MH  - Image Processing, Computer-Assisted
MH  - Mammography/methods
MH  - Middle Aged
MH  - Retrospective Studies
PMC - PMC5392962
OTO - NOTNLM
OT  - Breast cancer
OT  - Breast quadrant
OT  - Dense area
OT  - Mammographic density
OT  - Percent density
OT  - Upper-outer quadrant
EDAT- 2017/04/19 06:00
MHDA- 2017/04/19 06:01
CRDT- 2017/04/19 06:00
PHST- 2016/09/06 [received]
PHST- 2017/04/05 [accepted]
AID - 10.1186/s12885-017-3270-0 [doi]
AID - 10.1186/s12885-017-3270-0 [pii]
PST - epublish
SO  - BMC Cancer. 2017 Apr 17;17(1):274. doi: 10.1186/s12885-017-3270-0.

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