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Ultrasonographic evaluation of depth-width ratio (D/W) of benign and malignant mammary tumors in dogs.

Tagawa M, Kanai E, Shimbo G, Kano M, Kayanuma H - J. Vet. Med. Sci. (2015)

Bottom Line: Results of ultrasonographic and histopathologic examinations were compared.The D/W of malignant tumors was significantly greater than that of benign tumors, and it had a sensitivity of 56.3% and a specificity of 92.9% for the diagnosis of malignancy when the threshold of D/W was 0.7.In addition, irregular margin, polymorphous shape and heterogeneous internal echographic characteristics were correlated with malignancy.

View Article: PubMed Central - PubMed

Affiliation: Veterinary Medical Center, Department of Clinical Veterinary Medicine, Obihiro University of Agriculture and Veterinary Medicine, Inada, Obihiro, Hokkaido 080-8555, Japan.

ABSTRACT
Depth-width ratio (D/W) is the only quantitative item in the criteria recommended by the Japanese Ultrasound Society for the evaluation of breast tumors in humans. However, the usefulness of the D/W has not been evaluated in dogs. Eighty-six mammary masses in 34 female dogs underwent ultrasonographic examination to determine the D/W and other characteristics. Results of ultrasonographic and histopathologic examinations were compared. The D/W of malignant tumors was significantly greater than that of benign tumors, and it had a sensitivity of 56.3% and a specificity of 92.9% for the diagnosis of malignancy when the threshold of D/W was 0.7. In addition, irregular margin, polymorphous shape and heterogeneous internal echographic characteristics were correlated with malignancy.

No MeSH data available.


Related in: MedlinePlus

Ultrasonography images of the benign (A; adenoma) and malignant (B; carcinoma) mammarytumors and the measurement of D/W. The D/W of a mass is the division of depth bytransverse diameter of the mass.
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fig_001: Ultrasonography images of the benign (A; adenoma) and malignant (B; carcinoma) mammarytumors and the measurement of D/W. The D/W of a mass is the division of depth bytransverse diameter of the mass.

Mentions: The ultrasound examination was performed with a 10.0 MHz convex probe using NEMIO SSA-550Aultrasound equipment (TOSHIBA MEDICAL SYSTEMS, Ohtawara, Japan). The definition of D/W is thedivision of the depth by the transverse diameter of the mass [15]. The transverse diameter is the maximum diameter of the mass on ultrasound andis measured in the plane running parallel to the skin. The depth diameter is the verticallength of the mass perpendicular to the transverse diameter (Fig. 1Fig. 1.


Ultrasonographic evaluation of depth-width ratio (D/W) of benign and malignant mammary tumors in dogs.

Tagawa M, Kanai E, Shimbo G, Kano M, Kayanuma H - J. Vet. Med. Sci. (2015)

Ultrasonography images of the benign (A; adenoma) and malignant (B; carcinoma) mammarytumors and the measurement of D/W. The D/W of a mass is the division of depth bytransverse diameter of the mass.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4829530&req=5

fig_001: Ultrasonography images of the benign (A; adenoma) and malignant (B; carcinoma) mammarytumors and the measurement of D/W. The D/W of a mass is the division of depth bytransverse diameter of the mass.
Mentions: The ultrasound examination was performed with a 10.0 MHz convex probe using NEMIO SSA-550Aultrasound equipment (TOSHIBA MEDICAL SYSTEMS, Ohtawara, Japan). The definition of D/W is thedivision of the depth by the transverse diameter of the mass [15]. The transverse diameter is the maximum diameter of the mass on ultrasound andis measured in the plane running parallel to the skin. The depth diameter is the verticallength of the mass perpendicular to the transverse diameter (Fig. 1Fig. 1.

Bottom Line: Results of ultrasonographic and histopathologic examinations were compared.The D/W of malignant tumors was significantly greater than that of benign tumors, and it had a sensitivity of 56.3% and a specificity of 92.9% for the diagnosis of malignancy when the threshold of D/W was 0.7.In addition, irregular margin, polymorphous shape and heterogeneous internal echographic characteristics were correlated with malignancy.

View Article: PubMed Central - PubMed

Affiliation: Veterinary Medical Center, Department of Clinical Veterinary Medicine, Obihiro University of Agriculture and Veterinary Medicine, Inada, Obihiro, Hokkaido 080-8555, Japan.

ABSTRACT
Depth-width ratio (D/W) is the only quantitative item in the criteria recommended by the Japanese Ultrasound Society for the evaluation of breast tumors in humans. However, the usefulness of the D/W has not been evaluated in dogs. Eighty-six mammary masses in 34 female dogs underwent ultrasonographic examination to determine the D/W and other characteristics. Results of ultrasonographic and histopathologic examinations were compared. The D/W of malignant tumors was significantly greater than that of benign tumors, and it had a sensitivity of 56.3% and a specificity of 92.9% for the diagnosis of malignancy when the threshold of D/W was 0.7. In addition, irregular margin, polymorphous shape and heterogeneous internal echographic characteristics were correlated with malignancy.

No MeSH data available.


Related in: MedlinePlus