International Journal of Radiation Research
نشریه پرتو پژوه
Int J Radiat Res
Basic Sciences
http://ijrr.com
79
journal79
2322-3243
2345-4229
10.61186/ijrr
en
jalali
1383
3
1
gregorian
2004
6
1
2
1
online
1
fulltext
en
Logistic discriminant analysis of breast cancer using ultrasound measurements
Radiation Biology
Radiation Biology
تحقيق بديع
Original Research
<p><strong>Background: </strong>Logistic discriminant method was applied to differentiate malignant from benign in a group of patients with proved breast lesions on the basis of ultrasonic parameters. </p><p><strong>Materials and Methods: </strong>Our database include 273 patients' ultrasonographic pictures consisting of 14 quantitative variables. The measured variables were ultrasound propagation velocity, acoustic impedence and attenuation coefficient at 10 MHz in breast lesions at 20, 25, 30 and 35 º C temperature, physicsl density and age. This database was randomly divided into the estimation of 201 and validation of 72 samples. The estimation samples were used to build the logistic <br>discriminant model, and validation samples were used to validate the performance. Finally, <br>important criteria such as sensitivity, specificity, accuracy and area under the receiver operating characteristic curve (ROC) were evaluated. </p><p><strong>Results: </strong>Our results showed that the logistic discriminant method was able to classify correctly 67 out of 72 cases presented in the validation sample. The results indicate a remarkable <br>diagnostic accuracy of 93%. </p><strong>Conclusion: </strong>A logistic discriminantor approach is capable of predicting the probability of <br>malignancy of breast cancer. Features extracted from ultrasonic measurement on ultrasound imaging is used in this approach. <i>Iran </i><i>. J. Radiat. Res., 2004 2 (1): 27-34 </i>
, ultrasonic tissue characterization, ultrasonic imaging, logistic discriminant analysis, receiver operating characteristic curve (ROC)
27
34
http://ijrr.com/browse.php?a_code=A-10-1-38&slc_lang=en&sid=1
P. Abdolmaleki
79003194753284600115
79003194753284600115
Yes
M. Mokhtari Dizaji
79003194753284600116
79003194753284600116
No
M.R. Vahead
79003194753284600117
79003194753284600117
No
M. Gity
79003194753284600118
79003194753284600118
No