Yonsei University

Samsung Electronics Co., Ltd.

Do-sik Hwang

Dong-hyun Kim

Min-oh Kim

Dong-yeob Han

Hae-kyung Jung

Na-rae Choi

Ji-han Kim

Jin-seong Jang

Tae-joon Eo

Ung Jang

Sang-Hun Lee

Jae-Sung Lee

Yong-sup Park

Young-yoon Lee

Lae-hoon Kang

Jong-buhm Park

Young-woon Lee

Provided are a method and apparatus for processing a magnetic resonance (MR) image of an object including first and second materials on a magnetic resonance imaging (MRI) apparatus by using multi-parameter mapping including applying to the object a plurality of radio frequency (RF) pulses separated by a first repetition time and a second repetition time, the first repetition time and the second repetition time being determined based on the first material and the second material; undersampling first MR signals corresponding to the first material and second MR signals corresponding to the second material in a K-space; and performing matching between the undersampled first and the undersampled second MR signals and a signal model for the multi-parameter mapping to determine attribute values corresponding to the first and the second materials at at least one point in an MR image of the object.

Method and apparatus for quantifying properties of an object through magnetic resonance imaging (MRI)

Provided is a magnetic resonance imaging (MRI) apparatus. The MRI apparatus includes: a storage configured to store a plurality of MR signal data sets generated by applying a plurality of values of a first MR parameter and a plurality of values of a second MR parameter to an MR signal data generation model; a data acquisition unit configured to acquire an MR signal data set for a specific position of an object by undersampling an MR signal, based on the values of the first MR parameter; and an image processor configured to extract an MR signal data set that matches the MR signal data set acquired by undersampling the MR signal (hereinafter referred to as the 'undersampled MR signal data set') from among the stored MR signal data sets, obtain a value of the second MR parameter for the undersampled MR signal data set based on the extracted MR signal data set, and interpolate unsampled MR signal data in the undersampled MR signal data set (hereinafter, referred to as the 'interpolated MR signal data set') by using the value of the second MR parameter.

Magnetic resonance imaging apparatus and operating method for the same

Provided is a magnetic resonance imaging (MRI) apparatus. The MRI apparatus includes: a data acquisition unit configured to acquire a first k-space including a first missing line by undersampling an MR signal received from an object at a first time point, acquire a second k-space including a first acquired line corresponding to the first missing line by undersampling an MR signal received from the object at a second time point, and acquire a third k-space including a second acquired line corresponding to the first missing line by undersampling an MR signal received from the object at a third time point; and an image processor configured to interpolate data in the first missing line based on data in the first and second acquired lines.

Magnetic resonance imaging apparatus and method for operating the same

Disclosed are an apparatus and a method for removing noise from biosignals. An embodiment of the invention provides an apparatus for removing noise from biosignals measured for a particular period of time that includes: a similarity calculating unit configured to calculate a similarity between any one biosignal from among the biosignals and other biosignals; and a noise removal unit configured to remove noise from the any one biosignal by using the similarity. Aspects of the invention provide the advantage of effectively removing noise from biosignals without distorting the waveforms of the biosignals.

Apparatus and method for removing noise from biosignals

A method of controlling of an R-peak detection apparatus, which detects an R-peak from an ElectroCardioGram (ECG) signal, includes receiving the ECG signal, reading out a pre-stored ECG template, comparing the EG signal with the pre-stored ECG template to determine a similarity between the ECG signal and the pre-stored ECG template and determining whether the similarity is equal to or greater than a threshold value, and determining a corresponding interval as the R-peak when the similarity is equal to or greater than the threshold value.

R-PEAK detection apparatus and control method thereof

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Seoul, South Korea

Do-sik Hwang