scholarly journals Magnetic resonance imaging of the time course of hyperpolarized 129Xe gas exchange in the human lungs and heart

2018 ◽  
Vol 29 (5) ◽  
pp. 2283-2292 ◽  
Author(s):  
Ozkan Doganay ◽  
Mitchell Chen ◽  
Tahreema Matin ◽  
Marzia Rigolli ◽  
Julie-Ann Phillips ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Gas Exchange ◽  
Time Course ◽  
Resonance Imaging ◽  
Human Lungs ◽  
Hyperpolarized 129Xe

scholarly journals A Novel System for Patient Ventilation and Dosing of Hyperpolarized 3He for Magnetic Resonance Imaging of Human Lungs

2020 ◽  
Vol 10 (9) ◽  
pp. 3163
Author(s):  
Robert Kordulasiński ◽  
Marta Królewska ◽  
Bartosz Głowacz ◽  
Lutosława Mikowska ◽  
Zbigniew Olejniczak ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Lung Volume ◽  
Human Lung ◽  
Noble Gas ◽  
Lung Imaging ◽  
Resonance Imaging ◽  
Human Lungs ◽  
Hyperpolarized 129Xe ◽  
Breath Cycle

A versatile ventilator for controlling a patient’s breath cycle and dosing 3He gas has been designed and constructed. It is compatible with a medical magnetic resonance imaging scanner and can be incorporated into routine human lungs imaging procedure that employs hyperpolarized noble gas as a contrast agent. The system adapts to the patient’s lung volume and their breath cycle rhythm, providing maximum achievable comfort during the medical examination. Good quality magnetic resonance lung images of healthy volunteers were obtained. The system has the capability of recycling the exhaled gas to recover the expensive 3He isotope, and can be also adapted to human lung imaging with hyperpolarized 129Xe.

scholarly journals Self injection of foreign materials into the penis

2017 ◽  
Vol 99 (2) ◽  
pp. e78-e82 ◽  
Author(s):  
U Ahmed ◽  
A Freeman ◽  
A Kirkham ◽  
DJ Ralph ◽  
S Minhas ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Differential Diagnosis ◽  
Magnetic Resonance ◽  
Latent Period ◽  
Time Course ◽  
Resonance Imaging ◽  
Medical Practitioners ◽  
Mineral Oils ◽  
Subcutaneous Tissues ◽  
Foreign Materials

Injection of the subcutaneous tissues of the penis for enlargement of penile girth has been practised for many years by laypeople and medical practitioners alike. However, with recognition of complications, the practice has died out. We report a series of five patients who presented having injected foreign materials into the subcutaneous tissues of their penises, including paraffin and mineral oils. Our patients had a variable time course of presentation ranging from 1 day following injection to over 26 years. Self-injection of the subcutaneous tissues of the penis is an unusual presentation for a penile mass but should be considered as a differential diagnosis in patients with a long latent period to presentation or with characteristic magnetic resonance imaging and histological appearances.

Spectroscopic issues in optical polarization of 3He gas for Magnetic Resonance Imaging of human lungs

2013 ◽  
Vol 222 (9) ◽  
pp. 2103-2118
Author(s):  
T. Dohnalik ◽  
B. Głowacz ◽  
Z. Olejniczak ◽  
T. Pałasz ◽  
M. Suchanek ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Optical Polarization ◽  
Resonance Imaging ◽  
Human Lungs
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