Results 61 to 70 of about 69,048 (297)

Multi-Contrast Differentiation by Dual-Energy Spectral CT Angiography in a Patient with Pulmonary Barium Granulomas

Diagnostics, 2023
Barium inhalation usually relates to accidental aspiration during radiological procedures with an oral contrast agent. When present, barium lung deposits are visible as high-density opacities on chest X-ray or CT scan due to high atomic number, and they ...
Tommaso D’Angelo, Francesco M. Arico, Lydia Broccio, Giorgio Ascenti, Silvio Mazziotti, Christian Booz, Simon S. Martin, Ibrahim Yel, Ludovica R. M. Lanzafame, Alfredo Blandino, Carmelo Sofia   +10 more
doaj   +1 more source

Identifying transcription factors controlling the basal expression of human MRP4 highlights a substantial role for Sp1

FEBS Open Bio, EarlyView.
The MRP4 transporter exports several drugs and signaling molecules. Here, we identified key promoter elements regulating basal MRP4 expression. Using reporter assays, we defined a conserved region with essential Sp1 and contributory Ets sites, which controlled basal MRP4 expression.
Debora Singer, Angelique Kragl, Katrin Ziems, Juliane Glaubitz, Sophie Grammbauer, Susanne Hildebrandt, Mladen V. Tzvetkov, Gabriele Jedlitschky   +7 more
wiley   +1 more source

Medipix-based Spectral Micro-CT? [PDF]

, 2012
Since Hounsfield’s Nobel Prize winning breakthrough decades ago, x-ray CT has been widely applied in the clinical and preclinical applications - producing a huge number of tomographic gray-scale images.
Xu, Q., Yu, H., Mou, X., Wei, B., Butler, P., Wang, G., Butler, A., Bennett, J., Amir, R., Dobbs, B., He, P.   +10 more
core  

Application of Spectral Computed Tomography Single-energy Technique to Small Bowel Crohn’s Disease

CT Lilun yu yingyong yanjiu
Objective: To investigate the application of a double-layer detector spectral computed tomography (CT) single-energy technology for intestinal wall enhancement in Crohn’s disease enterography.
Pengfei WU, Chuanbing WANG
doaj   +1 more source

Usefulness of spectral computed tomography for evaluation of intestinal activity and severity in ileocolonic Crohn’s disease

Therapeutic Advances in Gastroenterology, 2016
Background: Assessment of intestinal activity and severity of Crohn’s disease (CD) is crucial to guide treatment. In this study, we aimed to investigate the accuracy of spectral computed tomography (CT) in this assessment and make a comparison with ...
Jiang Chen Peng, Qi Feng, Jiong Zhu, Jun Shen, Yu Qi Qiao, Jian Rong Xu, Zhi Hua Ran   +6 more
doaj   +1 more source

Derivation and characterization of retinal pigment epithelium from urine‐derived iPSCs

FEBS Open Bio, EarlyView.
Age‐related macular degeneration causes vision loss via RPE dysfunction and loss. Traditional iPSC therapies rely on invasive biopsies, limiting scalability. Here, we utilize urine‐derived stem cells as an accessible source to generate u‐iPSCs, successfully differentiated into pigmented RPE. This “Urine‐to‐Retina” platform provides a promising path for
Daniella Beiner, Hainan Zhu, Carol Christine Bosholm, Heuy‐Ching Wang, Tracy Criswell, Anthony Atala, Jian‐Xing Ma, Yuanyuan Zhang   +7 more
wiley   +1 more source

The Christchurch MARS-CT Project [PDF]

, 2009
The MARS-CT project aims to develop novel x-ray imaging systems based on state of the art spectral x-ray detectors from CERN (European Centre for Nuclear Research).
Butler, P.H., MARS-CT Team, Butler, A.P.H.   +2 more
core  

Spectral CT reconstruction via Spectral-Image Tensor and Bidirectional Image-gradient minimization.

, 2023
It is challenging to obtain good image quality in spectral computed tomography (CT) as the photon-number for the photon-counting detectors is limited for each narrow energy bin. This results in a lower signal to noise ratio (SNR) for the projections.
Yu, H, Liu, F, Wu, W, Vardhanabhuti, V, Zhang, J   +4 more
core   +1 more source

The Value of Radiomics Based on Spectral CT Iodine Map for Diagnosing Cervical Lymph Node Metastasis in Papillary Thyroid Carcinoma

CT Lilun yu yingyong yanjiu
Objective: To investigate the value of radiomics features based on spectral CT iodine map for diagnosing metastatic cervical lymph nodes in patients with papillary thyroid carcinoma.
Rui WANG, Dan JIN, Liang XU, Xiaoqiong NI, Yeqing WANG, Guohua FAN   +5 more
doaj   +1 more source

UiO‐66 metal–organic frameworks in biomedicine: From structural tunability to bioimaging, photodiagnostics, and photodynamic cancer therapy

FEBS Open Bio, EarlyView.
UiO‐66(Zr) metal–organic frameworks are chemically stable, biocompatible, and highly tunable nanomaterials. Their modular structure enables controlled drug delivery, multimodal bioimaging, and light‐activated photodynamic therapy, supporting integrated diagnostic and therapeutic (theranostic) applications in cancer and biomedical research.
Veronika Huntošová, Grigorii Rakhalskii, Miroslav Almáši   +2 more
wiley   +1 more source