Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Phase Contrast and Differential Interference Contrast Microscopy01:26

Phase Contrast and Differential Interference Contrast Microscopy

11.9K
Phase-Contrast Microscopes
In-phase-contrast microscopes, interference between light directly passing through a cell and light refracted by cellular components is used to create high-contrast, high-resolution images without staining. It is the oldest and simplest type of microscope that creates an image by altering the wavelengths of light rays passing through the specimen. Altered wavelength paths are created using an annular stop in the condenser. The annular stop produces a hollow cone of...
11.9K
Deconvolution01:20

Deconvolution

511
Deconvolution, also known as inverse filtering, is the process of extracting the impulse response from known input and output signals. This technique is vital in scenarios where the system's characteristics are unknown, and they must be inferred from the observable signals.
Deconvolution involves several mathematical techniques to derive the impulse response. One common approach is polynomial division. In this method, the input and output sequences are treated as coefficients of...
511
Double Resonance Techniques: Overview01:12

Double Resonance Techniques: Overview

638
Double resonance techniques in Nuclear Magnetic Resonance (NMR) spectroscopy involve the simultaneous application of two different frequencies or radiofrequency pulses to manipulate and observe two distinct nuclear spins. One important application of double resonance is spin decoupling, which selectively suppresses coupling with one type of nucleus while observing the NMR signal from another nucleus, simplifying the spectrum and enhancing resolution.
Spin decoupling is usually achieved by...
638
2D NMR: Overview of Homonuclear Correlation Techniques01:16

2D NMR: Overview of Homonuclear Correlation Techniques

572
Homonuclear correlation spectroscopy (COSY) is a powerful technique used in Nuclear Magnetic Resonance (NMR) spectroscopy to study the correlations between nuclei of the same type within a molecule. It provides information about scalar couplings between adjacent nuclei, which helps determine connectivity and structural information. There are several COSY variants, each with its unique strengths and experimental parameters.
COSY90 is the standard two-dimensional (2D) COSY experiment that...
572
Computed Tomography01:10

Computed Tomography

7.9K
Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
7.9K
¹³C NMR: Distortionless Enhancement by Polarization Transfer (DEPT)01:20

¹³C NMR: Distortionless Enhancement by Polarization Transfer (DEPT)

1.5K
When proton-coupled carbon-13 spectra are simplified by a broadband proton decoupling technique, structural information about the coupled protons is lost. Distortionless enhancement by polarization transfer (DEPT) is a technique that provides information on the number of hydrogens attached to each carbon in a molecule. While the DEPT experiment utilizes complex pulse sequences, the pulse delay and flip angle are specifically manipulated. The resulting signals have different phases depending on...
1.5K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Identification of age-related biomarkers for meat quality in Kangle chickens using multi-omics.

Food chemistry. Molecular sciences·2026
Same author

Structurally diverse sesquiterpenoids from Curcuma longa and their anti-inflammatory activities.

Phytochemistry·2026
Same author

Clinical management and pharmaceutical care of severe <i>Chlamydia psittaci</i> Pneumonia complicated with rhabdomyolysis and multiple organ dysfunction: a case report and literature review.

Frontiers in cellular and infection microbiology·2026
Same author

Pulmonary metastasectomy and survival in osteosarcoma: a systematic review and meta-analysis of surgery-related prognostic factors.

World journal of surgical oncology·2026
Same author

Upregulated CCN1 from pleural mesothelial cells alters collagen I conformation and drives fibrosis via ITGB1/MAPK signaling.

Cellular & molecular biology letters·2026
Same author

Versican regulating viscoelasticity drives pleural fibrosis via mechanotransductive signaling.

JCI insight·2026
Same journal

Amide proton transfer-weighted magnetic resonance imaging for predicting histopathology and biomarkers in rectal adenocarcinoma.

Quantitative imaging in medicine and surgery·2026
Same journal

Multimodality imaging for diagnosing and monitoring immunoglobulin G4-related coronary arteritis presenting as giant aneurysm: a case description.

Quantitative imaging in medicine and surgery·2026
Same journal

Investigation of the topological properties of brain structural and functional networks in patients with mild cognitive impairment.

Quantitative imaging in medicine and surgery·2026
Same journal

The critical role of transesophageal echocardiography in diagnosing carbon dioxide gas embolism: a case description and lessons learned.

Quantitative imaging in medicine and surgery·2026
Same journal

Impact of data augmentation size on deep learning-based third lumbar vertebra computed tomography skeletal muscle segmentation performance.

Quantitative imaging in medicine and surgery·2026
Same journal

Quantitative measurement of cutaneous neurofibromas in neurofibromatosis type 1 using a structured-light scanner.

Quantitative imaging in medicine and surgery·2026
See all related articles

Related Experiment Video

Updated: Jan 1, 2026

Time Multiplexing Super Resolving Technique for Imaging from a Moving Platform
06:25

Time Multiplexing Super Resolving Technique for Imaging from a Moving Platform

Published on: February 12, 2014

8.7K

Coil combination using linear deconvolution in k-space for phase imaging.

Qian Zheng1, Lin Xu2, Liang Xiong2

  • 1Zhengzhou University of Light Industry, Zhengzhou 450002, China.

Quantitative Imaging in Medicine and Surgery
|December 24, 2019
PubMed
Summary
This summary is machine-generated.

This study introduces an optimal coil combination method using k-space deconvolution for magnetic resonance imaging (MRI). The new technique reduces artifacts and phase cancellation, improving image quality in accelerated parallel MRI.

Keywords:
Phasecoil combinationmagnetic resonance imaging (MRI)phase unwrapping

More Related Videos

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
08:39

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

Published on: January 28, 2019

10.3K
Three-Dimensional Phase Resolved Functional Lung Magnetic Resonance Imaging
10:44

Three-Dimensional Phase Resolved Functional Lung Magnetic Resonance Imaging

Published on: June 21, 2024

996

Related Experiment Videos

Last Updated: Jan 1, 2026

Time Multiplexing Super Resolving Technique for Imaging from a Moving Platform
06:25

Time Multiplexing Super Resolving Technique for Imaging from a Moving Platform

Published on: February 12, 2014

8.7K
Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
08:39

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

Published on: January 28, 2019

10.3K
Three-Dimensional Phase Resolved Functional Lung Magnetic Resonance Imaging
10:44

Three-Dimensional Phase Resolved Functional Lung Magnetic Resonance Imaging

Published on: June 21, 2024

996

Area of Science:

  • Magnetic Resonance Imaging (MRI)
  • Medical Imaging
  • Signal Processing

Background:

  • Multi-channel data combination is crucial for MRI phase and susceptibility contrast imaging.
  • Magnitude-weighted methods can introduce noise and aliasing artifacts, especially in accelerated imaging.
  • Existing coil combination techniques face challenges with artifact reduction.

Purpose of the Study:

  • To propose an optimal coil combination method using k-space deconvolution.
  • To address noise and aliasing artifacts in magnitude images from accelerated MRI.
  • To improve phase and susceptibility contrast imaging in parallel MRI.

Main Methods:

  • A complex reference coil image is generated using sum-of-squares and phase aligning.
  • Coil sensitivity and its Fourier transform are calculated.
  • K-space combining weights are computed considering truncated frequency data and acquired k-space data.
  • Proton distribution k-space data is generated by combining coil k-space data with weights.

Main Results:

  • The proposed method effectively alleviates phase cancellation during coil combination.
  • Reduced phase wrapping is observed compared to magnitude-weighted methods and MCPC-C.
  • Phantom and in vivo experiments validate the method's performance.

Conclusions:

  • The developed method offers an effective and efficient approach for multi-coil image combination in parallel MRI.
  • This technique has the potential to enhance routine clinical MRI practices.
  • Improved image quality and artifact reduction are key benefits.