A preliminary analysis of the ultrasound imaging characteristics of malignant breast masses as compared with X-ray mammographic appearances and the gross and microscopic pathology

Objectives The aim of this study was to determine whether preoperative ultrasound imaging characteristic(s) in cats suffering from unilateral benign ureteral obstructions are predictive of outcome after successful renal decompression with a subcutaneous ureteral bypass (SUB) device. Methods This was a retrospective study of 37 cats with unilateral, benign ureteral obstruction. Preoperative imaging characteristics (including renal pelvis diameter, parenchymal thickness [transverse plane], renal length and pelvic size:overall renal size) and biochemical data were evaluated for all cats diagnosed with a unilateral ureteral obstruction treated with a SUB device. Any patient with bilateral obstructions or documented bacteriuria/infection in the data collection period was excluded. All patients were followed between 3 and 6 months postoperatively to obtain postoperative biochemical data. Long-term outcome was defined as serum creatinine concentration at 3–6 months postoperatively. Results No preoperative imaging characteristics or biochemical findings were found to be significantly associated with long-term serum creatinine concentrations. The length of the kidney was found to be associated with change in blood urea nitrogen and creatinine with decompression but not with long-term renal values. Conclusions and relevance In this study, long-term renal function based on preoperative ultrasound imaging findings could not be predicted in cats with unilateral ureteral obstruction, regardless of the severity of the biochemical parameters, renal pelvic dilation (large or small pelvis), kidney size or thickness of renal parenchyma assessed.

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An investigation of the imaging characteristics of the Y2O2S:Eu3+ phosphor for application in X-ray detectors of Digital Mammography

Applied Radiation and Isotopes ◽

10.1016/s0969-8043(97)10108-7 ◽

1998 ◽

Vol 49 (8) ◽

pp. 931-937 ◽

Cited By ~ 9

Author(s):

D. Cavouras ◽

I. Kandarakis ◽

G.S. Panayiotakis ◽

E. Kanellopoulos ◽

D. Triantis ◽

...

Keyword(s):

Digital Mammography ◽

X Ray ◽

Imaging Characteristics

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Axial-Shear Strain Imaging for Differentiating Benign and Malignant Breast Masses

Ultrasound in Medicine & Biology ◽

10.1016/j.ultrasmedbio.2010.07.008 ◽

2010 ◽

Vol 36 (11) ◽

pp. 1813-1824 ◽

Cited By ~ 30

Author(s):

Haiyan Xu ◽

Min Rao ◽

Tomy Varghese ◽

Amy Sommer ◽

Sara Baker ◽

...

Keyword(s):

Shear Strain ◽

Strain Imaging ◽

Breast Masses ◽

Axial Shear ◽

Malignant Breast

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Qualitative Diagnosis of Solid Breast Mass by Blood Flow in Solid Breast Mass Based on Color Doppler Ultrasound

Journal of Medical Imaging and Health Informatics ◽

10.1166/jmihi.2021.3682 ◽

2021 ◽

Vol 11 (6) ◽

pp. 1608-1615

Author(s):

Ding Zuopeng ◽

Liu Weiyong ◽

Hu Chunmei ◽

Wang Tao ◽

Wang Mingming

Keyword(s):

Breast Cancer ◽

Blood Flow ◽

Differential Diagnosis ◽

Color Doppler ◽

Flow Characteristics ◽

Flow Distribution ◽

Color Doppler Ultrasound ◽

Blood Flow Distribution ◽

Breast Masses ◽

Malignant Breast

The incidence of breast cancer ranks first among female malignant tumor. With the increase of the sensitivity of color Doppler ultrasound blood flow, the blood flow distribution in and around the tumor can be clearly displayed, and the analysis of hemodynamic parameters is provided, which provides convenience for the study of tumor blood flow characteristics. Studies have shown that tumor cells can secrete a substance called angiogenesis factor, which makes the tumor site form a rich vascular network to promote tumor growth and metastasis. The tumor has many new blood vessels, abnormal structure, thin wall, lack of muscle layer, and is prone to form arteriovenous rash. These characteristics provide a pathological basis for color Doppler flow imaging (CDFI) for the diagnosis of breast cancer. This article discusses the role of two-dimensional sonographic features in the differential diagnosis of benign and malignant breast masses, CDFI was used to study the blood flow distribution and hemodynamic characteristics in benign and malignant breast masses; explore the value of blood flow characteristics and blood flow parameters in the differential diagnosis of breast masses. The experimental results show that the detection rate of blood flow signals and the classification of blood flow signals in the malignant group are higher than those in the benign group, mainly level II and III blood flow, and the irregular branched blood flow is more common, especially when the tumor appears penetrating blood flow supports the diagnosis of malignancy. PSV, RI and PI have a certain differential meaning in the diagnosis of benign and malignant breast masses. PSV, RI and PI of malignant masses are higher than benign masses. For tumors without obvious necrosis, the larger the tumor diameter, the richer the blood flow and the higher the blood flow grade is. The malignant tumors have more blood flow than the benign ones.

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Application of 3D and 2D quantitative shear wave elastography (SWE) to differentiate between benign and malignant breast masses

Scientific Reports ◽

10.1038/srep41216 ◽

2017 ◽

Vol 7 (1) ◽

Cited By ~ 7

Author(s):

Jie Tian ◽

Qianqi Liu ◽

Xi Wang ◽

Ping Xing ◽

Zhuowen Yang ◽

...

Keyword(s):

Shear Wave ◽

Shear Wave Elastography ◽

Breast Masses ◽

Malignant Breast

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The effects of photon flux on energy spectra and imaging characteristics in a photon-counting x-ray detector

Physics in Medicine and Biology ◽

10.1088/0031-9155/58/14/4865 ◽

2013 ◽

Vol 58 (14) ◽

pp. 4865-4879 ◽

Cited By ~ 9

Author(s):

H-M Cho ◽

H-J Kim ◽

Y-N Choi ◽

S-W Lee ◽

H-J Ryu ◽

...

Keyword(s):

Photon Counting ◽

Energy Spectra ◽

Photon Flux ◽

X Ray ◽

Imaging Characteristics

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2–14 Benign Versus Malignant Breast Masses: Optical Differentiation With US-Guided Optical Imaging Reconstruction

Breast Diseases A Year Book Quarterly ◽

10.1016/s1043-321x(06)80423-6 ◽

2006 ◽

Vol 17 (2) ◽

pp. 147-148

Author(s):

C.R.B. Merritt

Keyword(s):

Optical Imaging ◽

Breast Masses ◽

Imaging Reconstruction ◽

Malignant Breast

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A study on the imaging characteristics of Gold nanoparticles as a contrast agent in X-ray computed tomography

Polish Journal of Medical Physics and Engineering ◽

10.1515/pjmpe-2017-0003 ◽

2017 ◽

Vol 23 (1) ◽

pp. 9-14 ◽

Cited By ~ 4

Author(s):

Asghar Mesbahi ◽

Fatemeh Famouri ◽

Mohammad Johari Ahar ◽

Maryam Olade Ghaffari ◽

Seyed Mostafa Ghavami

Keyword(s):

Computed Tomography ◽

Contrast Media ◽

Contrast Agent ◽

Hounsfield Unit ◽

Ct Number ◽

Agent Based ◽

X Ray ◽

Imaging Characteristics ◽

Tube Potential ◽

X Ray Computed

AbstractAim: In the current study, some imaging characteristics of AuNPs were quantitatively analyzed and compared with two conventional contrast media (CM) including Iodine and Gadolinium by using of a cylindrical phantom.Methods: AuNPs were synthesized with the mean diameter of 16 nm and were equalized to the concentration of 0.5, 1, 2 and 4 mg/mL in the same volumes. A cylindrical phantom resembling the head and neck was fabricated and drilled to contain small tubes filled with Iodine, Gadolinium, and AuNPs as contrast media. The phantom was scanned in different exposure techniques and CT numbers of three studied contrast media inside test tubes were measured in terms of Hounsfield Unit (HU). The imaging parameters of the noise and contrast to noise ratios (CNR) were calculated for all studied CMs.Results: AuNPs showed 128% and 166% higher CT number in comparison with Iodine and Gadolinium respectively. Also, Iodine had a greater CT number than Gadolinium for the same exposure techniques and concentration. The maximum CT number for AuNPs and studied contrast materials was obtained at the highest mAs and the lowest tube potential. The maximum CT number were 1033±11 (HU) for AuNP, 565±10 (HU) for Iodine, 458±11 for Gadolinium. Moreover, the maximum CNRs of 433±117, 203±53, 145±37 were found for AuNPs, Iodine and Gadolinium respectively.Conclusion: The contrast agent based on AuNPs showed higher imaging quality in terms of contrast and noise relative to other iodine and gadolinium based contrast media in X-ray computed tomography. Application of the AuNPs as a contrast medium in x-ray CT is recommended.

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