scholarly journals Foreign body in the heart muscle

1929 ◽  
Vol 25 (2) ◽  
pp. 230-230
Author(s):  
N. Vylegzhanin
Keyword(s):  
Foreign Body ◽  
Left Lung ◽  
Posterior Wall ◽  
Moderate Increase ◽  
X Rays ◽  
X Ray ◽  
Chest Cavity ◽  
The Third ◽  
Sixth Intercostal Space ◽  
Left Nipple

Hunter, Staub and Lunsford (Arch, of path. A. Lab. Med., Vol. 6, No. 5, 1928) observed a case when a patient with depressive-manic psychosis for the purpose of suicide introduced through the skin of the sixth intercostal space along the left nipple line an aluminum tube from the mouthpiece, 8.9 cm long, and 4 mm in diameter. Within two days, there were no subjective or objective symptoms, and only starting from the third day there was a moderate increase in temperature and an increase in pulse and respiration, which lasted until death, which occurred only on the 9th day, suddenly for 10 with the phenomena of sharp cyanosis , increased heart rate and respiration. An intravital X-ray examination did not reveal any foreign body in either the chest cavity or the heart. An autopsy showed that the tube passed over the apex of the heart through the wall of the left ventricle into its cavity and from there, through the posterior wall, entered into the left lung. There was a slight hemorrhage in the cardiac shirt and fresh fibrinous pericarditis. The authors explain the negative X-ray study by the light permeability of aluminum for all rays, with the exception of the shortest X-rays.

scholarly journals 3D Imaging in Unilateral Primary Pulmonary Hypoplasia in an Adult: A Case Report

2011 ◽  
Vol 2011 ◽  
pp. 1-6
Author(s):  
Aristida Georgescu ◽  
Crinu Nuta ◽  
Simona Bondari
Keyword(s):  
3D Imaging ◽  
Pulmonary Hypoplasia ◽  
Left Lung ◽  
Left Lobe ◽  
X Rays ◽  
X Ray ◽  
Female Smoker ◽  
Multidetector Computer Tomography ◽  
Biological Tests ◽  
Chest X Ray

Unilateral primary pulmonary hypoplasia is rare in adulthood (UPHA); it is characterized by a decreased number of bronchial segmentation and decreased/absent alveolar air space. Classical chest X-ray may be confusing, and the biological tests are unspecific. We present a case of UPHA in a 60-year-old female, smoker, with 3 term normal deliveries, who presented with late recurrent pneumonias and bronchiectasis-type symptomathology, arterial hypertension, and obesity. Chest X-rays revealed opacity in the left lower pulmonary zone, an apparent hypoaerated upper left lobe and left deviation of the mediastinum. Preoperatory multidetector computer tomography (MDCT) presented a small retrocardiac left lung with 5-6 bronchial segmentation range and cystic appearance. After pneumonectomy the gross specimen showed a small lung with multiple bronchiectasis and small cysts, lined by hyperplasic epithelium, surrounded by stromal fibrosclerosis. We concluded that this UPHA occurred in the 4–7 embryonic weeks, and the 3D MDCT reconstructions offered the best noninvasive diagnosis.

scholarly journals Evolution of Stellar Activity in Early Post-Main-Sequence Phases

1993 ◽  
Vol 137 ◽  
pp. 648-650
Author(s):  
A. Maggio ◽  
S. Sciortino ◽  
L. Bianchi ◽  
F.R. Harnden ◽  
R. Rosner
Keyword(s):  
Spectral Type ◽  
Main Sequence ◽  
Activity Level ◽  
Sensitivity Threshold ◽  
Moderate Increase ◽  
X Rays ◽  
Late Type ◽  
Lower Mass ◽  
X Ray ◽  
Radiative Emission

We present preliminary observational evidences on the variation of the activity level in late type stars, during the evolutionary phases on the main sequence and beyond. We have selected a sample of 51 stars (Fig. 1), lying mostly along evolutionary tracks between 1.3 and 1.7 solar masses, which have been observed in soft X-rays with the Einstein Observatory, and in UV with IUE (Maggio et al. 1990; Haisch et al.1990). Two ROSAT targets, and four new IUE observations are also included.We find that the radiative emission from the outer atmospheres of stars with M > 1.6M⊙ seems to behave differently than for stars with lower mass.On the main sequence, the X-ray luminosity of most stars with B-V < 0.42 (spectral type F3) is relatively low, at Lx ~ 3 × 1028erg s-1 (Fig. 2). In the early evolutionary phases beyond the main sequence, the X-ray luminosity of the higher mass stars tend to increase sistematically up to ~ 1030erg s-1, while the lower mass stars show an initial moderate increase followed by a drop, at B-V ~ 0.6, below our sensitivity threshold.

Radiological diagnosis of aspirated foreign bodies in children: Review of 343 cases

1990 ◽  
Vol 104 (10) ◽  
pp. 778-782 ◽  
Author(s):  
Liancai Mu ◽  
Deqiang Sun ◽  
Ping He
Keyword(s):  
Foreign Body ◽  
Foreign Bodies ◽  
Correct Diagnosis ◽  
X Rays ◽  
Endoscopic Removal ◽  
X Ray ◽  
Abnormal Chest ◽  
Mediastinal Shift ◽  
Plain Chest ◽  
Chest X Ray

AbstractIn our series of 400 Chinese children with foreign body aspiration (FBA),343 cases were evaluated by fluoroscopy and/or plain chest X-rays before endoscopic removal of the foreign bodies. The majority of the foreign bodies (FBs) were organic (378/400, 94.5 per cent). The results showed that mainstem bronchial foreign bodies were diagnosed correctly in 68 per centof cases compared with 65 per cent correct diagnoses with segmental bronchial foreign bodies, but only 22 per cent correct diagnoses with tracheal, and 0 per cent correct diagnosis in those with laryngeal foreign bodies. Eighty per cent (32/40) of the children with laryngotracheal FBs had normal X-ray findings, whereas 67.7 per cent (205/303) of the children with bronchial FBs had abnormal chest X-ray findings. The most common positive radiological signs in the children with tracheobronchial FBs were obstructive emphysema (131/213, 62 per cent) and mediastinal shift (117/213, 55 percent). The incidence of major complications was related not only to the size of the foreign body and its location but also the duration since aspiration. The most common types of bronchial obstructions by airway FBs are discussed.

scholarly journals Unusual foreign bodies of the airway: a case series regarding their management

2018 ◽  
Vol 4 (4) ◽  
pp. 1089
Author(s):  
Aishwarya Ullal ◽  
Sanjeev Mishra ◽  
R. K. Mundra
Keyword(s):  
Foreign Body ◽  
Foreign Bodies ◽  
Case Series ◽  
Rigid Bronchoscopy ◽  
Lateral View ◽  
Virtual Bronchoscopy ◽  
X Rays ◽  
X Ray ◽  
Radiological Studies ◽  
Respiratory Reflexes

<p>Foreign bodies in the bronchi are a common problem seen by ENT surgeons. Bronchial foreign bodies are common in children because they have difficulty in swallowing hard foodstuffs such as nuts and have an inadequately developed protective respiratory reflexes, which makes them vulnerable to inhalation of foreign bodies This is a case series of four unusual cases of foreign body airway, that presented to our ENT OPD, after taking detailed history and clinical examination, these patients were subjected to radiological studies such as chest X-rays, X-ray soft tissue lateral view, virtual bronchoscopy and CT chest to confirm the foreign body, after taking informed consent rigid bronchoscopy was performed and foreign body extracted.</p>

The Canadian Light Source — History and scientific prospects

2004 ◽  
Vol 82 (6) ◽  
pp. 1028-1042 ◽  
Author(s):  
G M Bancroft
Keyword(s):  
Light Source ◽  
X Rays ◽  
X Ray ◽  
The Third ◽  
Scientific Disciplines ◽  
The World ◽  
History Of ◽  
Synchrotron Light ◽  
Under Construction ◽  
The University

The Canadian Light Source (CLS) in Saskatoon has been under construction for the last 4 years, and will be producing a number of very intense beams of far-IR, IR, soft and hard X-rays in 2004 for use by several hundred Canadian scientists in chemistry, surface and material science, and a host of other scientific disciplines. The CLS will dramatically enhance the Canadian spectroscopic tradition that Gerhard Herzberg help create. I begin this article (from my 2002 CIC Montreal Medal lecture) with an overview of the history of SR in Canada, beginning in 1972 with the first Canadian synchrotron workshop organized at the University of Western Ontario by Bill McGowan, and attended by Dr. Herzberg. The CLS facility is then described, along with the properties of the first and second set of beamlines to be built at the CLS. These SR beams, in the IR and X-ray regions from the third generation CSL ring, will be competitive in brightness and intensity with the best beamlines in the world for most applications. Finally, some of the present Canadian SR research at foreign SR sources is described across the entire SR spectrum. All known spectroscopic and diffraction experiments are dramatically enhanced with SR; and SR opens up new areas of spectroscopy, microscopy, and spectromicroscopy that cannot be studied with any other source of radiation.Key words: synchrotron light, X-rays, infrared, spectroscopy.

scholarly journals To X-Ray or Not to X-Ray? Discussing Unknown Nasal Foreign Bodies and Button Batteries

2021 ◽  
pp. 014556132110331
Author(s):  
Rujuta R. Roplekar Bance ◽  
Vikas Acharya ◽  
Coyle Paula ◽  
J Panesar
Keyword(s):  
Foreign Body ◽  
Foreign Bodies ◽  
X Rays ◽  
Metallic Foreign Body ◽  
Plain Radiographs ◽  
X Ray ◽  
Button Batteries

The emergency of esophageal button batteries is recognized. Foreign bodies in the ear or nose are treated as comparatively nonemergent. We present the case of a child who presented with suspected pen-nib in the nostril to highlight the importance of investigation and intervention in unwitnessed nasal foreign body and review the literature regarding X-rays in these cases. Fifteen papers were identified as per search parameters; 3 papers recommend the use of plain radiographs for nasal foreign bodies. We propose that in unwitnessed pediatric nasal foreign body insertion, a facial X-ray should be considered, especially if suspecting a metallic foreign body.

scholarly journals Within the Lack of Chest COVID-19 X-ray Dataset: A Novel Detection Model Based on GAN and Deep Transfer Learning

Symmetry ◽  
2020 ◽  
Vol 12 (4) ◽  
pp. 651 ◽  
Author(s):  
Mohamed Loey ◽  
Florentin Smarandache ◽  
Nour Eldeen M. Khalifa
Keyword(s):  
Transfer Learning ◽  
Healthcare Systems ◽  
World Health ◽  
Transfer Model ◽  
X Rays ◽  
Computer Algorithms ◽  
X Ray ◽  
The Third ◽  
The World ◽  
Testing Accuracy

The coronavirus (COVID-19) pandemic is putting healthcare systems across the world under unprecedented and increasing pressure according to the World Health Organization (WHO). With the advances in computer algorithms and especially Artificial Intelligence, the detection of this type of virus in the early stages will help in fast recovery and help in releasing the pressure off healthcare systems. In this paper, a GAN with deep transfer learning for coronavirus detection in chest X-ray images is presented. The lack of datasets for COVID-19 especially in chest X-rays images is the main motivation of this scientific study. The main idea is to collect all the possible images for COVID-19 that exists until the writing of this research and use the GAN network to generate more images to help in the detection of this virus from the available X-rays images with the highest accuracy possible. The dataset used in this research was collected from different sources and it is available for researchers to download and use it. The number of images in the collected dataset is 307 images for four different types of classes. The classes are the COVID-19, normal, pneumonia bacterial, and pneumonia virus. Three deep transfer models are selected in this research for investigation. The models are the Alexnet, Googlenet, and Restnet18. Those models are selected for investigation through this research as it contains a small number of layers on their architectures, this will result in reducing the complexity, the consumed memory and the execution time for the proposed model. Three case scenarios are tested through the paper, the first scenario includes four classes from the dataset, while the second scenario includes 3 classes and the third scenario includes two classes. All the scenarios include the COVID-19 class as it is the main target of this research to be detected. In the first scenario, the Googlenet is selected to be the main deep transfer model as it achieves 80.6% in testing accuracy. In the second scenario, the Alexnet is selected to be the main deep transfer model as it achieves 85.2% in testing accuracy, while in the third scenario which includes two classes (COVID-19, and normal), Googlenet is selected to be the main deep transfer model as it achieves 100% in testing accuracy and 99.9% in the validation accuracy. All the performance measurement strengthens the obtained results through the research.

scholarly journals A black hole X-ray binary at ∼100 Hz: multiwavelength timing of MAXI J1820+070 with HiPERCAM and NICER

2019 ◽  
Vol 490 (1) ◽  
pp. L62-L66 ◽  
Author(s):  
J A Paice ◽  
P Gandhi ◽  
T Shahbaz ◽  
P Uttley ◽  
Z Arzoumanian ◽  
...  
Keyword(s):  
Black Hole ◽  
Time Scales ◽  
X Rays ◽  
X Ray ◽  
Black Hole Candidate ◽  
Optical Wavelength ◽  
The Third ◽  
Binary Black Hole ◽  
Internal Shock ◽  
Low Mass

ABSTRACT We report on simultaneous sub-second optical and X-ray timing observations of the low-mass X-ray binary black hole candidate MAXI J1820+070. The bright 2018 outburst rise allowed simultaneous photometry in five optical bands (ugrizs) with HiPERCAM/GTC (Optical) at frame rates over 100 Hz, together with NICER/ISS observations (X-rays). Intense (factor of 2) red flaring activity in the optical is seen over a broad range of time-scales down to ∼10 ms. Cross-correlating the bands reveals a prominent anticorrelation on time-scales of ∼seconds, and a narrow sub-second correlation at a lag of ≈ +165 ms (optical lagging X-rays). This lag increases with optical wavelength, and is approximately constant over Fourier frequencies of ∼0.3–10 Hz. These features are consistent with an origin in the inner accretion flow and jet base within ∼5000 Gravitational radii. An additional ∼+5 s lag feature may be ascribable to disc reprocessing. MAXI J1820+070 is the third black hole transient to display a clear ∼0.1 s optical lag, which may be common feature in such objects. The sub-second lag variation with wavelength is novel, and may allow constraints on internal shock jet stratification models.

scholarly journals The Novel Role of Healing from Bacterial Infections of Lower Limb Open Fractures by X-Ray Exposure

2020 ◽  
Vol 2020 ◽  
pp. 1-7
Author(s):  
Ali A. Mahdi ◽  
Tuqa S. Al-Salmani ◽  
Mustafa M. Al-Qaisi
Keyword(s):  
Lower Limb ◽  
Open Fractures ◽  
X Rays ◽  
Bacterial Isolates ◽  
Isolation Rate ◽  
X Ray ◽  
E Coli ◽  
The Third ◽  
Grade Ii

Introduction. An open fracture refers to a break in the skin, which is exposed to microbial contamination and eventually leads to most complicated infections. X-rays can kill bacteria by causing irreversible DNA damage. Objective. To confirm the role of X-ray exposure in treating infected wound fractures at the lower limb and determine X-ray exposure times. Methods. Fifty-one wound swabs were collected from patients with infected open fractures at the lower limb with grade II, IIIA, B, and C according to the Gustilo and Anderson classification system and then cultured. The bacterial isolates were identified by biochemical tests and the VITEK-2 System and tested against several antibiotics. The X-ray exposure was done for open fractures by radiography (at kV133 and 5 milliambers). Results. The higher isolation rate was recorded for Staphylococcus aureus with 21 (41.2%) isolates, and most of them (20, 95.2%) were isolated from grade II fractures. The isolation rate of Gram-negative bacteria was 25.5% for Escherichia coli with 13 isolates, 19.6% for Pseudomonas aeruginosa with 10 isolates, and 13.7% for Klebsiella pneumoniae with 7 isolates, most of which were isolated from grade III fractures. The isolation rate of P. aeruginosa was 60% (6 isolates) from grade IIIA and 71.4% (5 isolates) from grade IIIB for K. pneumoniae, while for E. coli it was 69.2% (9 isolates) from grade IIIC. All the bacterial isolates recorded high levels of antibiotic resistance against most tested antibiotics. Wound cultures of grade II fractures appeared sterile after the first X-ray exposure, and these wounds were infected with S. aureus or P. aeruginosa. However, cultures of grade IIIA and IIIB fractures appeared sterile after the second X-ray exposure for all isolated bacteria, except for S. aureus (grade IIIA fractures) (after the third X-ray exposure). Grade IIIC fractures showed sterile culture after the third X-ray exposure for wounds infected with P. aeruginosa and E. coli. Conclusions. The study concluded that X-ray exposure showed high effectiveness in treating infected open fractures.

scholarly journals Bronchial Foreign Body Alerting of a Bronchial Tumor: The Need of a Follow-Up Radiography

2016 ◽  
Vol 2016 ◽  
pp. 1-4
Author(s):  
Nahida El-Rifai ◽  
Samar Shahine ◽  
Hassan Sidani ◽  
Ali Sabeh Aion ◽  
Antoine Deschildre ◽  
...  
Keyword(s):  
Foreign Body ◽  
Pediatric Population ◽  
Left Lung ◽  
World Health ◽  
Surgical Removal ◽  
Low Grade ◽  
Intermediate Cell ◽  
X Ray ◽  
Chest X Ray ◽  
Complete Collapse

Lung tumors are extremely rare in the pediatric population, comprising only 0.2% of all malignancies in children. Among them, mucoepidermoid carcinoma (MEC) is even rarer with a reported frequency of 0.1% to 0.2%. MEC is defined by the World Health Organization as a tumor characterized by a combination of mucus-secreting, squamous, and intermediate cell types. We describe the case of a 4-year-old girl who presented with a history of intermittent fever and nonproductive cough of 1-month duration after foreign body aspiration. The chest X-ray showed complete collapse of the left lung. After removal of the foreign body, the lung expanded well after. However, the control chest X-ray done after 5 days showed again complete collapse of the left lung. The biopsy specimen taken during bronchoscopy confirmed the diagnosis of low-grade MEC. Fluorescence in situ hybridization (FISH) confirmed the presence of MAML2 rearrangement. Complete surgical resection with preservation of lung parenchyma was performed. No adjuvant therapy was needed. Repeat bronchoscopy was performed 2 months after surgery and showed no recurrence of the tumor. In conclusion, a remote chest X-ray after removal of a foreign body is necessary to avoid missing a rare serious underlying disease such as MEC. According to the size and the location of the tumor, complete surgical removal is sufficient without additional treatment in case of low-grade tumor. The presence of MAML2 rearrangement confers a favorable outcome and may have long-term implications for the clinical management.

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