scholarly journals Scimitar Syndrome in an Asymptomatic Adult: Fortuitous Diagnosis by Imaging Technique

2012 ◽  
Vol 2012 ◽  
pp. 1-3
Author(s):  
Miguel Angel Ramirez-Marrero ◽  
Manuel de Mora-Martin
Keyword(s):  
Computed Tomography ◽  
Medical History ◽  
Congenital Abnormalities ◽  
Imaging Technique ◽  
Imaging Techniques ◽  
Scimitar Syndrome ◽  
Rare Clinical Entity ◽  
Recurrent Pneumonia ◽  
History Of ◽  
Asymptomatic Adult

Congenital cardiopathies in adults are a rare clinical entity in the cardiology consultations. Advances in imaging techniques allow the fortuitous diagnosis of mild forms of these congenital abnormalities. We describe a case of an asymptomatic 41-year-old man, with a medical history of recurrent pneumonia during childhood and an established diagnosis of scimitar syndrome by computed tomography.

scholarly journals Computed tomography in the diagnosis of steroidal hepatopathy in a dog: case report

2011 ◽  
Vol 63 (1) ◽  
pp. 36-39 ◽  
Author(s):  
D.C Oliveira ◽  
L.A.V.S Costa ◽  
B.F Lopes ◽  
A.B Lanis ◽  
D.C Borlini ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Hepatic Injury ◽  
Imaging Technique ◽  
Helical Computed Tomography ◽  
Hepatic Glycogen ◽  
Hounsfield Units ◽  
Presumptive Diagnosis ◽  
History Of ◽  
Yorkshire Terrier

It is reported a case of an eight-year-old Yorkshire Terrier dog, with a history of prolonged use of prednisone in a dosage of 1mg/kg of body weight each 24 hours during two years. The helical computed tomography revealed hepatomegaly associated to a hyperattenuation of the parenchyma, with a radiodensity value of 82.55 Hounsfield units (HU). The spleen presented a mean radiodensity of 57.17HU, and a radiodensity difference of 25.38HU was observed between the two organs. Based on the history and findings of imaging technique, it was determined the presumptive diagnosis of steroidal hepatopathy compatible with accumulation of hepatic glycogen. It was concluded that computed tomography enabled the characterization of hepatic injury and the presumed diagnosis of steroidal hepatopathy

scholarly journals Ultrasound and Cystic Echinococcosis

2018 ◽  
Vol 04 (03) ◽  
pp. E70-E78 ◽  
Author(s):  
Enrico Brunetti ◽  
Francesca Tamarozzi ◽  
Calum Macpherson ◽  
Carlo Filice ◽  
Markus Piontek ◽  
...  
Keyword(s):  
Differential Diagnosis ◽  
Cystic Echinococcosis ◽  
Scientific Community ◽  
Imaging Technique ◽  
Imaging Techniques ◽  
Patient Preparation ◽  
History Of ◽  
Almost All ◽  
First Time

AbstractThe introduction of imaging techniques in clinical practice 40 years ago changed the clinical management of many diseases, including cystic echinococcosis (CE). For the first time cysts were clearly seen before surgery. Among the available imaging techniques, ultrasound (US) has unique properties that can be used to study and manage cystic echinococcosis. It is harmless, can image almost all organs and systems, can be repeated as often as required, is portable, requires no patient preparation, is relatively inexpensive and guides diagnosis, treatment and follow-up without radiation exposure and harm to the patient. US is the only imaging technique which can be used in field settings to assess CE prevalence because it can be run even on solar power or a small generator in remote field locations. Thanks to US classifications, the concept of stage-specific treatments was introduced and because US is repeatable, the scientific community has gained a clearer understanding of the natural history of the disease. This paper reviews the scope of US in CE, describes its strengths and weaknesses compared to other imaging techniques and its relationship with serodiagnosis and discusses sonographic features that may be helpful in differential diagnosis.

scholarly journals Presacral myelolipoma as a possible parasymptom of cancer: A case report

Rare Tumors ◽  
2018 ◽  
Vol 10 ◽  
pp. 203636131877212
Author(s):  
Akio Sakamoto ◽  
Iori Nagamatsu ◽  
Eisuke Shiba ◽  
Takeshi Okamoto ◽  
Masanori Hisaoka ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Computed Tomography ◽  
Abdominal Pain ◽  
Medical History ◽  
Lung Metastases ◽  
High Signal ◽  
Endocrine Disorders ◽  
History Of ◽  
T2 Weighted Images

Presacral myelolipomas are rare, benign, asymptomatic tumors composed of mature adipose tissue and hematopoietic elements. Presacral myelolipomas can occur in patients with a medical history of malignancy, steroid use, and/or endocrine disorders including diabetes mellitus. A 65-year-old man with no specific medical history experienced temporal abdominal pain without bowel symptoms that lasted a few hours. By the time he visited a hospital, the pain had diminished. Computed tomography failed to detect any abnormality in the abdominal or pelvic organs that would have caused the abdominal pain but revealed a lesion 4 cm in diameter in the frontal sacrum. Magnetic resonance imaging showed that the lesion contained fat elements with a high signal intensity on T1- and T2-weighted images, which was decreased on fat-suppression T2-weighted images. Computed tomography–guided biopsy and imaging allowed a diagnosis of presacral myelolipoma. After 3 months, hematochezia was observed, and follow-up examination revealed rectal carcinoma with multiple lung metastases. He died due to spread of the cancer despite chemotherapy, 6 months after the cancer was found. Considering the possible association between presacral myelolipoma and cancer, presacral myelolipoma might be a cancer parasymptom. Checking for possible malignancy may therefore be warranted in patients with presacral myelolipoma, especially in those without diabetes mellitus.

scholarly journals ASSESSMENT OF SUSPICIOUS OVARIAN CYSTS IN THE FEMALES BY USING OF TRANS ABDOMINAL ULTRASONOGRAPHY (TAUS) AND COMPUTED TOMOGRAPHY (CT)

2019 ◽  
Vol 3 (1) ◽  
Author(s):  
Dr. Chandan Kishore ◽  
Dr. Ratna Priya
Keyword(s):  
Computed Tomography ◽  
Ct Scan ◽  
Imaging Techniques ◽  
Diagnostic Value ◽  
Ovarian Cysts ◽  
Ovarian Mass ◽  
Abdominal Ultrasonography ◽  
Ionic Contrast ◽  
History Of ◽  
Ovarian Masses

Owing to the development and improvement of growing number of conservative surgeries like laparoscopic surgery, the ultimate diagnosis of an ovarian mass is considered to be an important mission in gynecologic practice. The degree of suspicion for malignancy in a given mass is based largely on imaging appearance. Suspicious ovarian masses should be evaluated preoperatively to know their nature and behavior, which in turn persuade the choice of type of surgery. Evaluation of the suspicious ovarian mass should include clinical evaluation and imaging techniques. The aim of this study is to compare the diagnostic value of transabdominal ultrasonography (TAUS) and computed tomography (CT) in evaluation of suspicious ovarian masses The 50 female patients referred to the Department of Radiology in the Narayan Medical College and Hospital fromJan 2018 to July 2018 was enrolled in the present study. The enrolled females were identified with the ovarian cysts. The females underwent the trans abdominal ultrasonography (TAUS) and computed tomography (CT). Detailed history of allergy and renal function tests were taken before doing CT scan and if there was history of allergy then non-ionic contrast was used. Site, size, papillary projections, wall characteristics, capsular infiltrations, the presence of solid areas inside the mass and presence of as cites were recorded both by US and CT scan. The results of present study suggest that in diagnosing and determining the benign or malignant potential of an ovarian mass, both USG and CT have concordant roles. CT is more sensitive in determining the malignant lesions, USG is more specific and the difference between the two is statistically insignificant. Keywords: Suspicious Ovarian Cysts, trans abdominal ultrasonography (TAUS) and computed tomography (CT), etc.

scholarly journals Determination of Suitable Imaging Techniques for the Investigation of the Bonding Zones of Asphalt Layers

Materials ◽  
2021 ◽  
Vol 14 (24) ◽  
pp. 7556
Author(s):  
Moritz Middendorf ◽  
Cristin Umbach ◽  
Stefan Böhm ◽  
Bernhard Middendorf
Keyword(s):  
Computed Tomography ◽  
High Resolution ◽  
Detailed Analysis ◽  
Imaging Technique ◽  
Imaging Techniques ◽  
Material Behavior ◽  
High Resolution Computed Tomography ◽  
Layer Boundary ◽  
Bitumen Emulsion ◽  
The Individual

The material behavior of asphalt depends on its composition of aggregate, bitumen, and air voids. Asphalt pavements consist of multiple layers, making the interaction of the materials at the layer boundary important so that any stresses that occur can be relieved. The material behavior at the layer boundary is not yet understood in detail, as further methods of analysis are lacking in addition to mechanical methods. For this reason, the layer boundary of asphalt structures was analyzed using imaging methods. The aim of this research was to find an imaging method that allows a detailed analysis of the bonding zone of asphalt layers. Two different imaging techniques were used for this purpose. One is a 2-D imaging technique (asphalt petrology) and the other is a 3-D imaging technique (high-resolution computed tomography). Image analysis is a widely used technique in materials science that allows to analyze the material behavior and their composition. In this research, attention was paid to the analysis of the position of the bitumen emulsion, because the contained bitumen is supposed to bond the layers together. It was found that the application of 2-D imaging (asphalt petrology) lacked the precision for a detailed analysis of the individual materials at the layer boundary. With high-resolution computed tomography, a detailed view is possible to visualize the individual materials at the layer boundary in 3D. However, it is difficult to differentiate the materials because there are no gradations in the gray values due to the identical densities. However, it is possible to differentiate between the bitumen from the asphalt and from the emulsion if a high-density tracer is added to the bitumen emulsion for the CT studies. The results of the investigations are presented in this article.

X-ray microtomography

1988 ◽  
Vol 46 ◽  
pp. 998-999
Author(s):  
H.W. Deckman ◽  
B.F. Flannery ◽  
J.H. Dunsmuir ◽  
K.D' Amico
Keyword(s):  
Computed Tomography ◽  
Internal Structure ◽  
Imaging Technique ◽  
Three Dimensional ◽  
Tissue Structure ◽  
Individual Element ◽  
X Ray ◽  
Non Invasive ◽  
Panoramic Imaging ◽  
Three Dimensional Images

We have developed a new X-ray microscope which produces complete three dimensional images of samples. The microscope operates by performing X-ray tomography with unprecedented resolution. Tomography is a non-invasive imaging technique that creates maps of the internal structure of samples from measurement of the attenuation of penetrating radiation. As conventionally practiced in medical Computed Tomography (CT), radiologists produce maps of bone and tissue structure in several planar sections that reveal features with 1mm resolution and 1% contrast. Microtomography extends the capability of CT in several ways. First, the resolution which approaches one micron, is one thousand times higher than that of the medical CT. Second, our approach acquires and analyses the data in a panoramic imaging format that directly produces three-dimensional maps in a series of contiguous stacked planes. Typical maps available today consist of three hundred planar sections each containing 512x512 pixels. Finally, and perhaps of most import scientifically, microtomography using a synchrotron X-ray source, allows us to generate maps of individual element.

How Valid are Patient Reports of Family History of Illness?

1980 ◽  
Vol 19 (03) ◽  
pp. 162-164 ◽  
Author(s):  
Rachel Harris ◽  
W. Margaret ◽  
Kathleen Hunter
Keyword(s):  
Family History ◽  
Medical History ◽  
Cancer Patients ◽  
Cause Of Death ◽  
Death Certificate ◽  
Recall Rate ◽  
Patient Reports ◽  
Small Subgroup ◽  
History Of ◽  
Medical Histories

The recall rate of patients’ family medical histories was studied in 200 cancer and non-cancer patients. Data on age and cause of death for parents and grandparents were collected. Although most patients knew the age and cause of death of parents, less than half knew for grandparents. Cancer patients had significantly greater recall for maternally related relatives. A subsample of patients’ family medical histories was compared to death certificate data. Patients’ reports were found to be highly inaccurate. Since only a small subgroup could provide medical history data for grandparents, the generaliz-ability for history of family illness is questioned.

Refractory Ascites as the Only Presenting Symptom of Chronic Calcified Constrictive Pericarditis: A Diagnostic Challenge

2014 ◽  
Vol 17 (1) ◽  
pp. 42
Author(s):  
Shi-Min Yuan
Keyword(s):  
Computed Tomography ◽  
Liver Cirrhosis ◽  
Female Patient ◽  
Constrictive Pericarditis ◽  
Delayed Diagnosis ◽  
Young Female ◽  
Refractory Ascites ◽  
Diagnostic Challenge ◽  
Massive Ascites ◽  
History Of

Extracardiac manifestations of constrictive pericarditis, such as massive ascites and liver cirrhosis, often cover the true situation and lead to a delayed diagnosis. A young female patient was referred to this hospital due to a 4-year history of refractory ascites as the only presenting symptom. A diagnosis of chronic calcified constrictive pericarditis was eventually established based on echocardiography, ultrasonography, and computed tomography. Cardiac catheterization was not performed. Pericardiectomy led to relief of her ascites. Refractory ascites warrants thorough investigation for constrictive pericarditis.

Integration Between Computed Tomography and Nuclear Medicine for Non-invasive Assessment of Coronary Anatomy and Myocardial Perfusion

2009 ◽  
Vol 5 (2) ◽  
pp. 15
Author(s):  
Wanda Acampa ◽  
Mario Petretta ◽  
Carmela Nappi ◽  
Alberto Cuocolo ◽  
◽  
...  
Keyword(s):  
Computed Tomography ◽  
Coronary Heart Disease ◽  
Blood Flow ◽  
Heart Disease ◽  
Myocardial Perfusion ◽  
Myocardial Blood Flow ◽  
Imaging Techniques ◽  
Emission Computed Tomography ◽  
Coronary Anatomy ◽  
Non Invasive

Many non-invasive imaging techniques are available for the evaluation of patients with known or suspected coronary heart disease. Among these, computed-tomography-based techniques allow the quantification of coronary atherosclerotic calcium and non-invasive imaging of coronary arteries, whereas nuclear cardiology is the most widely used non-invasive approach for the assessment of myocardial perfusion. The available single-photon-emission computed tomography flow agents are characterised by a cardiac uptake proportional to myocardial blood flow. In addition, different positron emission tomography tracers may be used for the quantitative measurement of myocardial blood flow and coronary flow reserve. Extensive research is being performed in the development of non-invasive coronary angiography and myocardial perfusion imaging using cardiac magnetic resonance. Finally, new multimodality imaging systems have recently been developed bringing together anatomical and functional information. This article provides a description of the available non-invasive imaging techniques in the assessment of coronary anatomy and myocardial perfusion in patients with known or suspected coronary heart disease.

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