Results 41 to 50 of about 213,840 (355)

Positron emission computed tomography/single photon emission computed tomography in Parkinson disease

open access: yesChinese Medical Journal, 2020
. Parkinson disease (PD) is the second-most common neurodegenerative disorder. Its main pathological mechanism is the selective degeneration and deletion of dopaminergic neurons in the dense part of the substantia nigra and the damage of dopaminergic ...
Nian-Ting Yao   +9 more
doaj   +1 more source

High resolution PET, SPECT and projection imaging in small animals [PDF]

open access: yes, 2001
Positron emission tomography, single photon emission computed tomography and planar projection imaging of radioactive tracers have long been in use for detecting and diagnosing disease in human subjects.
Eckelman, William C.   +5 more
core   +2 more sources

Difficult diagnosis and management of a complicated Nellix graft infection

open access: yesJournal of Vascular Surgery Cases and Innovative Techniques, 2021
An 81-year-old man, with a complex vascular surgical history, presents with sepsis from an infected Nellix stent-graft. He required an urgent laparotomy, explantation of the graft, and extra-anatomical repair. Although now widely used for this indication,
Jin Xin Lin, MBChB   +3 more
doaj   +1 more source

The Integration of Positron Emission Tomography With Magnetic Resonance Imaging [PDF]

open access: yes, 2008
A number of laboratories and companies are currently exploring the development of integrated imaging systems for magnetic resonance imaging (MRI) and positron emission tomography (PET).
Cherry, Simon R.   +2 more
core   +1 more source

CSF Levels of NPTX2 Are Associated With Less Brain Atrophy Over Time in Cognitively Unimpaired Individuals

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Introduction Neuronal pentraxin 2 (NPTX2) is a synaptic protein involved in synaptic plasticity and regulation of neuronal excitability. Lower baseline cerebrospinal fluid (CSF) NPTX2 levels have been shown to be associated with an earlier onset of mild cognitive impairment (MCI), a pre‐dementia syndrome, even after CSF Alzheimer's Disease (AD)
Juan P. Vazquez   +12 more
wiley   +1 more source

A Potential Prognostic Marker for Recognizing VEGF-Positive Hepatocellular Carcinoma Based on Magnetic Resonance Radiomics Signature

open access: yesFrontiers in Oncology, 2022
ObjectivesThe objective of our project is to explore a noninvasive radiomics model based on magnetic resonance imaging (MRI) that could recognize the expression of vascular endothelial growth factor (VEGF) in hepatocellular carcinoma before operation ...
Tingting Fan   +7 more
doaj   +1 more source

UPM miliki MRI 3 Tesla, pertama seumpamanya di Malaysia [PDF]

open access: yes, 2015
SERDANG, 4 Jun (UPM) – Selepas menjadi universiti awam pertama di negara ini mempunyai kelengkapan PET-CT Scan (Positron Emission Tomography – Computed Tomography Scan) pada tahun 2010, Universiti Putra Malaysia (UPM) terus membuat langkahan besar ...
Universiti Putra Malaysia, Pejabat Strategi Korporat dan Komunikasi
core  

Commentary on "a case of paratesticular leiomyosarcoma successfully treated with orchiectomy and chemotherapy" [PDF]

open access: yes, 2015
We have read with great interest the article written by Ko and colleagues on a particularly rare type of malignant mesenchymal tumor that is paratesticular leiomyosarcoma and we did appreciate the argumentation on the utility of adjuvant chemotherapy as ...
Marchetti, Paolo   +3 more
core   +1 more source

Higher Amyloid and Tau Burden Is Associated With Faster Decline on a Digital Cognitive Test

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective A 2‐min digital clock‐drawing test (DCTclock) captures more granular features of the clock‐drawing process than the pencil‐and‐paper clock‐drawing test, revealing more subtle deficits at the preclinical stage of Alzheimer's disease (AD). A previous cross‐sectional study demonstrated that worse DCTclock performance was associated with
Jessie Fanglu Fu   +16 more
wiley   +1 more source

Central hyperthyroidism due to an ectopic TSH-secreting pituitary tumor: a case report and literature review

open access: yesFrontiers in Endocrinology
Ectopic thyroid-stimulating hormone (TSH)-secreting tumors are extremely rare, with only 15 reported cases in the literature. Herein, we described a 60-year-old female patient with thyrotoxicosis and elevated or unsuppressed levels of TSH. Family history
Chonggui Zhu   +9 more
doaj   +1 more source

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