Portable apparatus for detecting breast cancer

An apparatus for detecting abnormal masses of a tissue, the apparatus comprising:

• at least one first sensor configured to obtain a voltage at a first position of a first breast of a subject;
• at least one second sensor configured to obtain a voltage at a second position of a second breast of the subject, the second position corresponding to the first position;
• a differential amplifier configured to amplify a difference between voltages respectively obtained by the at least one first sensor and the at least one second sensor;
• and
• a lesion determination controller configured to determine whether a lesion is present based on an output of the differential amplifier.

An apparatus for detecting abnormal masses of a tissue, the apparatus comprising:

• a measurement sensor configured to obtain a voltage at a first area of a first breast of a subject;
• (n−1) number of peripheral sensors configured to obtain a voltage around the first area, n being an integer equal to or greater than two;
• a reference sensor configured to obtain a voltage at a second area of a second breast of the subject, a position of the first area corresponding to a position of the second area;
• and
• n number of differential amplifiers configured to respectively amplify differences between the voltage obtained by the reference sensor and voltages obtained by the measurement sensor and the (n−1) number of peripheral sensors,
• wherein a presence of a lesion is determined based on outputs of the n number of differential amplifiers.

A method of detecting abnormal masses of a tissue, the method comprising:

• obtaining, by a measurement sensor, a voltage at a first area of a first breast of a subject;
• obtaining, by a reference sensor, a voltage at a second area of a second breast of the subject, a position of the first area corresponding to a position of the second area;
• amplifying, by a differential amplifier, a voltage input from the at least one of the measurement sensor and the reference sensor;
• passing, by an active low pass filter, a signal frequency of a low frequency band among signals transmitted from the differential amplifier;
• amplifying, by a driver amplifier, a signal passed through the active low pass filter;
• converting, by an analog-to-digital (AD) converter, the signal amplified by the driver amplifier into a digital signal;
• and
• detecting the abnormal masses of the tissue based on the digital signal.

A method of detecting abnormal masses of a tissue, the method comprising:

• obtaining, by at least one first sensor, a voltage at a first position of a first breast of a subject;
• obtaining, by at least one second sensor, a voltage at a second position of a second breast of the subject, the second position corresponding to the first position;
• amplifying, by a differential amplifier, a difference between voltages respectively obtained by the at least one first sensor and the at least one second sensor;
• and
• determining, by a lesion determination controller, whether a lesion is present based on an output of the differential amplifier.

A method of detecting abnormal masses of a tissue, the method comprising:

• obtaining, by a measurement sensor, a voltage at a first area of a first breast of a subject;
• obtaining, by (n−1) number of peripheral sensors, a voltage around the first area, n being an integer equal to or greater than two;
• obtaining, by a reference sensor, a voltage at a second area of a second breast of the subject, a position of the first area corresponding to a position of the second area;
• and
• amplifying, by n number of differential amplifiers, respective differences between the voltage obtained by the reference sensor and voltages obtained by the measurement sensor and the (n−1) number of peripheral sensors,
• wherein a presence of a lesion is determined based on outputs of the n number of differential amplifiers.