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Imaging Studies III: Computed Tomography01:27

Imaging Studies III: Computed Tomography

257
DefinitionComputed Tomography (CT) of the genitourinary (GU) tract is a non-invasive imaging modality that utilizes X-rays and computer processing to generate detailed cross-sectional images of the urinary system, encompassing the kidneys, ureters, bladder, and adjacent structures such as the adrenal glands.PurposeCT scans of the GU tract serve several diagnostic and therapeutic purposes, including:Diagnosis of Urinary Tract Diseases: Detects kidney stones, tumors, cysts, and congenital...
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Computed Tomography01:10

Computed Tomography

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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...
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Electron Microscope Tomography and Single-particle Reconstruction01:07

Electron Microscope Tomography and Single-particle Reconstruction

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Transmission electron microscopy (TEM) can be used to determine the 3D structure of biological samples with the help of techniques such as electron microscope tomography and single-particle reconstruction. While single-particle reconstruction can examine macromolecules and macromolecular complexes in vitro conditions only, tomography permits the study of cell components or small cells in vivo.
Electron Tomography
Electron tomography can be performed either in TEM or STEM (scanning transmission...
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Imaging Studies II: Positron Emission Tomography and Scintigraphy01:25

Imaging Studies II: Positron Emission Tomography and Scintigraphy

470
Positron Emission Tomography (PET) is a medical imaging technique that provides crucial insights into the body's physiological functions at a molecular level. It is an indispensable resource for diagnosing, staging, and monitoring various illnesses, notably cancer, neurological disorders, and cardiovascular conditions.
Fundamental Principles of PET
470
Imaging Studies I: CT and MRI01:14

Imaging Studies I: CT and MRI

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Introduction: MRI and CT scans are crucial advancements in medical imaging techniques, playing a vital role in diagnosing conditions related to the gastrointestinal (GI) system. Each scan serves distinct purposes, targets specific areas, and requires unique nursing duties.
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...
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Updated: Jan 8, 2026

Monitoring Lung Function with Electrical Impedance Tomography in the Intensive Care Unit
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電気インピーダンス断層撮影のための物理埋め込み型デュアル学習イメージングフレームワーク

Xuanxuan Yang1, Yangming Zhang2, Haofeng Chen3

  • 1Hefei Institutes of Physical Science, Chinese Academy of Sciences, 350 Shushanhu Road, Hefei, Anhui, 230031, China; Department of Precision Instruments and Precision Machinery, University of Science and Technology of China, 96 Jinzhai Road, Hefei, 230026, Anhui, China.

Neural networks : the official journal of the International Neural Network Society
|December 21, 2025
PubMed
まとめ
この要約は機械生成です。

提案されたデュアル学習フレームワークは、導電率イメージングを改善するための電気インピーダンス断層撮影（EIT）のための新しいフレームワークを導入します。このアプローチは、スパースでノイズの多い境界データによる再構成の堅牢性と効率を向上させます。

背景:

  • 電気インピーダンス断層撮影（EIT）は、導電率分布の再構成のための非侵襲的イメージング方法です。
  • EIT逆問題は非線形であり、不良設定であるため、従来の正則化技術には課題があります。
  • 既存の物理情報ニューラルネットワーク（PINN）は、実用的なEITで一般的なスパースでノイズの多い境界データに苦労しています。

結論:

キーワード:
計算イメージング畳み込みニューラルネットワーク電気インピーダンス断層撮影物理情報ニューラルネットワーク

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  • 物理埋め込み型デュアル学習イメージングフレームワークは、実用的なEITアプリケーションに有望なソリューションを提供します。
  • この新しいアプローチは、スパースでノイズの多いデータを使用したEITイメージングのパフォーマンスを向上させます。
  • このフレームワークは、従来のメソッドと比較して効率と堅牢性が向上していることを示しています。