How to Improve the Conspicuity of Breast Tumors on Computed High b-value Diffusion-weighted Imaging

@article{Tamura2018HowTI,
  title={How to Improve the Conspicuity of Breast Tumors on Computed High b-value Diffusion-weighted Imaging},
  author={Takayuki Tamura and Miyuki Takasu and Toru Higaki and Kazushi Yokomachi and Y. Akiyama and Hiroomi Sumida and Yasushi Nagata and Kazuo Awai},
  journal={Magnetic Resonance in Medical Sciences},
  year={2018},
  volume={18},
  pages={119 - 125}
}
Purpose: The aim of this study was to compare the tumor conspicuity on actual measured diffusion-weighted images (aDWIs) and computed DWI (cDWI) of human breast tumors and to examine, by use of a phantom, whether cDWI improves their conspicuity. Materials and Methods: We acquired DWIs (b-value 0, 700, 1400, 2100, 2800, and 3500 s/mm2) of 148 women with breast tumors. cDWIs with b-values of 1400, 2100, 2800, and 3500 s/mm2 were calculated from aDWI scans where b = 0 and 700 s/mm2; the tumor… 

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References

SHOWING 1-10 OF 23 REFERENCES

Feasibility of Computed Diffusion Weighted Imaging and Optimization of b-value in Cervical Cancer

  • Y. MoribataA. Kido K. Togashi
  • Medicine
    Magnetic resonance in medical sciences : MRMS : an official journal of Japan Society of Magnetic Resonance in Medicine
  • 2017
Computed DWI with the b-values of 1300 and 1600 would be suitable for the evaluation of cervical cancer due to good tumor conspicuity and total image quality.

Investigation of the optimal b-value to detect breast tumors with diffusion weighted imaging by 1.5-T MRI

DWI with a b-value of approximately 1400-1500 s/mm2 is recommended for optimizing breast tumor detectability.

Assessment of breast lesions with diffusion-weighted MRI: comparing the use of different b values.

Diffusion-weighted imaging is a potential resource as a coadjutant of MRI in the differentiation between benign and malignant lesions, especially because it can be done with lower b values.

Biexponential Signal Attenuation Analysis of Diffusion-weighted Imaging of Breast.

  • Takayuki TamuraS. Usui M. Akiyama
  • Medicine
    Magnetic resonance in medical sciences : MRMS : an official journal of Japan Society of Magnetic Resonance in Medicine
  • 2010
PURPOSE in vivo, the attenuation of diffusion-weighted imaging (DWI) signal at high b-values is sometimes nonlinear when plotted with semilogarithmic function and is fit well by a biexponential

Diffusion-weighted MR for differentiation of breast lesions at 3.0 T: how does selection of diffusion protocols affect diagnosis?

Optimum ADC determination and DW imaging quality at 3.0 T was found with a combined b value protocol of 50 and 850 sec/mm(2), which provided a high accuracy for differentiation of benign and malignant breast tumors.

Computed diffusion-weighted MR imaging may improve tumor detection.

Computed DW MR imaging in the body allows higher-b-value images to be obtained with a good SNR and may improve disease detection, and the feasibility of the technique to improve lesion detection in oncologic cases is investigated.

Diffusion-weighted imaging (b value = 1500 s/mm2) is useful to decrease false-positive breast cancer cases due to fibrocystic changes

Adding ADC values calculated from DWI to BI-RADS is a useful way to improve differential diagnostic accuracy for malignant tumors and benign lesions, especially for DCIS versus fibrocystic changes, except in cases of ductal hyperplasia.

[Influence of b value on the measurement of contrast and apparent diffusion coefficient in 3.0 Tesla breast magnetic resonance imaging].

The results indicated that when only one b value is used, the b value in which signal intensities of normal mammary gland decreases down to noise level, and the contrast between normal mammaries gland and tumor tissues is recommended.

Diffusion-Weighted Imaging of Malignant Breast Tumors: The Usefulness of Apparent Diffusion Coefficient (ADC) Value and ADC Map for the Detection of Malignant Breast Tumors and Evaluation of Cancer Extension

It is concluded that DWI has a potential for clinical appreciation in detecting breast cancer and that the distribution of low ADC values and pathologic cancer extension shows precise distribution as cancer extension.