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https://www.readbyqxmd.com/read/28344684/splenic-vein-thrombosis-as-a-rare-complication-of-disseminated-tuberculosis-imaging-diagnosis-and-case-report
#1
Satarupa Roy, Shuchi Bhatt, Rajesh Rawal, Anupama Tandon, Neha Meena
BACKGROUND: Venous thromboembolism is a known but rare complication associated with Mycobacterium tuberculosis infection. The reported incidence of venous thromboembolism is 1.5-3.4% of infected patients, and it occurs due to a hypercoagulable state induced by the associated inflammation. CASE REPORT: A young woman with pulmonary tuberculosis was found to have disseminated tuberculosis and a clinically unsuspected partial thrombus in the splenic vein on imaging...
2017: Polish Journal of Radiology
https://www.readbyqxmd.com/read/28343817/which-is-better-and-useful-modality-of-x-ray-for-diagnosis-of-pneumothorax-at-emergency-setting-conventional-or-invert-grayscale
#2
Ekrem Musalar, Salih Ekinci, Orkun Ünek, Eda Arş, Hakan Şevki Eren, Bengi Gürses, Can Aktaş
INTRODUCTION: Pneumothorax is a pathologic condition in which air is accumulated between the visceral and parietal pleura. After clinical suspicion, in order to diagnose the severity of the condition, imaging is necessary. By using the help of Picture Archiving and Communication Systems (PACS) direct conventional X-rays are converted to gray-scale and this has become a preferred method among many physicians. METHODS: Our study design was a case-control study with cross-over design study...
March 18, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28342525/-cardiac-hydatid-cyst-which-imaging-modality-for-an-accurate-diagnosis
#3
A Ben Khalfallah, H Ben Slima
Cardiac echinococcosis is rare. Its spontaneous course is serious because of the risk of rupture. Its clinical manifestations are variable, often latent and misleading. The diagnosis is sometimes referred to by chest radiography. It is much facilitated by non-invasive imaging techniques in particular transesophageal and transthoracic echocardiography, CT scan and magnetic resonance imaging. The latter through a morphological and topographical analysis accurate diagnosis of hydatid cyst and its relationship to cardiac muscle and surrounding tissue...
March 22, 2017: Annales de Cardiologie et D'angéiologie
https://www.readbyqxmd.com/read/28342038/coronary-artery-calcium-in-breast-cancer-survivors-after-radiation-therapy
#4
Richard A P Takx, Rozemarijn Vliegenthart, U Joseph Schoepf, Lothar R Pilz, Stefan O Schoenberg, Pamela B Morris, Thomas Henzler, Paul Apfaltrer
The purpose of the current study is to investigate whether breast cancer survivors after radiation therapy have a higher burden of coronary artery calcium as a potential surrogate of radiation-induced accelerated coronary artery disease. 333 patients were included. 54 patients underwent chest CT ≥ 6 months after the start of radiation therapy (radiation therapy group), while 279 patients had a CT scan either prior to or without undergoing radiation therapy (RT). Coronary artery calcium was quantified from CT by applying a threshold-based automated algorithm...
March 24, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28339311/lung-rads-category-4x-does-it-improve-prediction-of-malignancy-in-subsolid-nodules
#5
Kaman Chung, Colin Jacobs, Ernst T Scholten, Jin Mo Goo, Helmut Prosch, Nicola Sverzellati, Francesco Ciompi, Onno M Mets, Paul K Gerke, Mathias Prokop, Bram van Ginneken, Cornelia M Schaefer-Prokop
Purpose To evaluate the added value of Lung CT Screening Reporting and Data System (Lung-RADS) assessment category 4X over categories 3, 4A, and 4B for differentiating between benign and malignant subsolid nodules (SSNs). Materials and Methods SSNs on all baseline computed tomographic (CT) scans from the National Lung Cancer Trial that would have been classified as Lung-RADS category 3 or higher were identified, resulting in 374 SSNs for analysis. An experienced screening radiologist volumetrically segmented all solid cores and located all malignant SSNs visible on baseline scans...
March 24, 2017: Radiology
https://www.readbyqxmd.com/read/28338554/eligibility-for-minimally-invasive-coronary-artery-bypass-examination-of-epicardial-adipose-tissue-using-computed-tomography
#6
Kate E M Dillon, Marjorie Johnson, Ian L Chan, Bob Kiaii
OBJECTIVE: A variable that necessitates conversion to a conventional full-sternotomy coronary artery bypass procedure from a robotic-assisted endoscopic single-vessel small thoracotomy is the inability to visualize the left anterior descending coronary artery within the surrounding epicardial adipose tissue using the endoscopic camera. The purpose of this study was to determine whether anatomical properties of the epicardial adipose tissue examined using preoperative computed tomography (CT) images are able to predict and thus reduce the need for intraoperative conversion based on effective preoperative exclusion criteria...
March 23, 2017: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
https://www.readbyqxmd.com/read/28337922/acquired-pulmonary-artery-pseudoaneurysms-a-pictorial-review
#7
Benedicte Guillaume, Anne Vendrell, Xavier Stefanovic, Frederic Thony, Gilbert R Ferretti
Pulmonary artery pseudoaneurysms (PAPs) are uncommon but potentially lethal. They may be incidentally discovered on imaging, or following massive hemoptysis if they rupture, with high risk of mortality. The most frequent causes of PAP are trauma and infectious disease. Vasculitis, in particular Behçet's disease, neoplasm, congenital disease and pulmonary hypertension are rarer causes of PAP. A PAP can be suspected from chest X-Ray and contrast CT, but requires confirmation by CT angiography. Arteriography is no longer performed for diagnostic purposes, but can be useful to prepare endovascular occlusion of the PAP...
March 24, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28333543/corrosive-induced-carcinoma-of-esophagus-esophagographic-and-ct-findings
#8
Seung Yeon Noh, Hyun Jin Kim, Hyun Joo Lee, Seong Ho Park, Jong Seok Lee, Ah Young Kim, Hyun Kwon Ha
OBJECTIVE: The purpose of this study was to evaluate the esophagographic and CT findings of corrosive esophageal cancer. MATERIALS AND METHODS: The records of all patients who presented with corrosive esophageal strictures at one institution between June 1989 and April 2015 were retrospectively identified. The search yielded the records of 15 patients with histopathologically proven esophageal cancer. Esophagograms (13 patients) and chest CT images (14 patients) were interpreted independently by two reviewers...
March 23, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28325788/decompression-illness-with-hypovolemic-shock-and-neurological-failure-symptoms-after-two-risky-dives-a-case-report
#9
Sebastian Klapa, Johannes Meyne, Wataru Kähler, Frauke Tillmans, Henning Werr, Andreas Binder, Andreas Koch
Hypovolemia is known to be a predisposing factor of decompression illness (DCI) while diving. The typical clinically impressive neurological symptoms of DCI may distract from other symptoms such as an incipient hypovolemic shock. We report the case of a 61-year-old male Caucasian, who presented with an increasing central and peripheral neural failure syndrome and massive hypovolemia after two risky dives. Computed tomography (CT) scans of the chest and Magnetic resonance imaging scans of the head revealed multiple cerebral and pulmonary thromboembolisms...
March 2017: Physiological Reports
https://www.readbyqxmd.com/read/28324924/automatic-tissue-characterization-of-air-trapping-in-chest-radiographs-using-deep-neural-networks
#10
Awais Mansoor, Geovanny Perez, Gustavo Nino, Marius George Linguraru
Significant progress has been made in recent years for computer-aided diagnosis of abnormal pulmonary textures from computed tomography (CT) images. Similar initiatives in chest radiographs (CXR), the common modality for pulmonary diagnosis, are much less developed. CXR are fast, cost effective and low-radiation solution to diagnosis over CT. However, the subtlety of textures in CXR makes them hard to discern even by trained eye. We explore the performance of deep learning abnormal tissue characterization from CXR...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28324617/rare-localized-extralobar-sequestration-with-congenital-cystic-adenomatoid-malformation-a-case-report
#11
Satoshi Nagasaka, Satsuki Kina, Yoshihito Arimoto, Fumi Yokote, Tsuyoshi Uchida, Hirochika Matsubara
Extralobar sequestrations constitute a rare form of congenital pulmonary airway malformations that are difficult to diagnose. Here, we report a rare case of a localized extralobar sequestration in the right superior portion of the mediastinum accompanied by congenital cystic adenomatoid malformation.A 19-year-old man presented with a right upper mediastinal mass that was detected using chest radiography, had a history of left spontaneous pneumothorax, and had undergone a bullectomy 4 years previously.The initial diagnosis included a mature teratoma and a bronchogenic cyst in the mediastinum; however, the presence of a cystic mass in the right upper lobe of the lung prompted further examination...
December 2017: Surgical Case Reports
https://www.readbyqxmd.com/read/28323236/rationale-study-design-and-analysis-plan-of-the-lung-imaging-morphology-for-ventilator-settings-in-acute-respiratory-distress-syndrome-study-live-study-study-protocol-for-a-randomised-controlled-trial
#12
Matthieu Jabaudon, Thomas Godet, Emmanuel Futier, Jean-Etienne Bazin, Vincent Sapin, Laurence Roszyk, Bruno Pereira, Jean-Michel Constantin
Different acute respiratory distress syndrome (ARDS) phenotypes may explain controversial results in clinical trials. Lung-morphology is one of the ARDS-phenotypes and physiological studies suggest different responses in terms of positive-end-expiratory-pressure (PEEP) and recruitment-manoeuvres (RM) according to loss of aeration. To evaluate whether tailored ventilator regimens may impact ARDS outcomes, our group has designed a randomised-clinical-trial of ventilator settings according to lung morphology in moderate-to-severe ARDS (LIVE study)...
March 17, 2017: Anaesthesia, Critical Care & Pain Medicine
https://www.readbyqxmd.com/read/28321355/a-rare-presentation-of-sarcoidosis-as-a-pancreatic-head-mass
#13
Shruti Mony, Pradnya D Patil, Rebekah English, Ananya Das, Daniel A Culver, Tanmay S Panchabhai
Sarcoidosis is a multisystem granulomatous syndrome of unknown etiology with noncaseating epithelioid granulomas being the pathognomonic pathological finding. Sarcoidosis most commonly involves the lungs and involvement of the gastrointestinal (GI) tract is uncommon. Pancreatic sarcoidosis is very rare, especially when it is the presenting feature of sarcoidosis and can masquerade as pancreatic cancer. Tissue infiltration in pancreatic sarcoidosis can lead to either a diffuse nodular appearance or a mass-like lesion...
2017: Case Reports in Pulmonology
https://www.readbyqxmd.com/read/28319503/myocardial-infarction-in-a-patient-with-hypertrophic-cardiomyopathy-but-normal-coronary-arteries
#14
Shuheng Li, Xiaoxin Sun, Zongyao Zhang, Zuo-Xiang He
A 57-year-old man with a history of hypertrophic cardiomyopathy diagnosed by echocardiography experienced atypical chest pain and dyspnea for 6 months. A rest Tc-MIBI myocardial SPECT imaging and a F-FDG myocardial PET/CT imaging were performed, which showed multiple matched myocardial perfusion/metabolism defects in the left ventricle, indicating scar tissue. Surprisingly, subsequent contrast coronary angiography revealed no significant coronary artery stenosis.
March 17, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28302073/image-quality-improvement-using-model-based-iterative-reconstruction-in-low-dose-chest-ct-for-children-with-necrotizing-pneumonia
#15
Jihang Sun, Tong Yu, Jinrong Liu, Xiaomin Duan, Di Hu, Yong Liu, Yun Peng
BACKGROUND: Model-based iterative reconstruction (MBIR) is a promising reconstruction method which could improve CT image quality with low radiation dose. The purpose of this study was to demonstrate the advantage of using MBIR for noise reduction and image quality improvement in low dose chest CT for children with necrotizing pneumonia, over the adaptive statistical iterative reconstruction (ASIR) and conventional filtered back-projection (FBP) technique. METHODS: Twenty-six children with necrotizing pneumonia (aged 2 months to 11 years) who underwent standard of care low dose CT scans were included...
March 16, 2017: BMC Medical Imaging
https://www.readbyqxmd.com/read/28301584/diagnostic-accuracy-and-added-value-of-dual-energy-subtraction-radiography-compared-to-standard-conventional-radiography-using-computed-tomography-as-standard-of-reference
#16
Katharina Martini, Marco Baessler, Stephan Baumueller, Thomas Frauenfelder
PURPOSE: To retrospectively evaluate diagnostic performance of dual-energy subtraction radiography (DESR) for interpretation of chest radiographs compared to conventional radiography (CR) using computed tomography (CT) as standard of reference. MATERIAL AND METHODS: A total of 199 patients (75 female, median age 67) were included in this institutional review board (IRB)-approved clinical trial. All patients were scanned in posteroanterior and lateral direction with dual-shot DE-technique...
2017: PloS One
https://www.readbyqxmd.com/read/28301535/quantitative-assessment-of-pulmonary-alveolar-proteinosis-pap-with-ultra-dose-ct-and-correlation-with-pulmonary-function-tests-pfts
#17
Xin Sui, Qianni Du, Kai-Feng Xu, Xinlun Tian, Lan Song, Xiao Wang, Xiaoli Xu, Zixing Wang, Yuyan Wang, Jun Gu, Wei Song, Zhengyu Jin
BACKGROUND: The purpose of this study was to investigate whether ultra-low-dose chest computed tomography (CT) can be used for visual assessment of CT features in patients with pulmonary alveolar proteinosis (PAP) and to evaluate the relationship between the quantitative analysis of the ultra-low-dose CT scans and the pulmonary function tests (PFTs). METHODS: Thirty-eight patients (mean [SD] age, 44.47 [12.28] years; 29 males, 9 females) with PAP were enrolled and subjected to two scans each with low-dose CT (reference parameters: 120 kV and 50 mAs) and ultra-low-dose CT (reference parameters, 80 kV, 25 mAs)...
2017: PloS One
https://www.readbyqxmd.com/read/28300293/coronary-artery-calcification-is-common-on-nongated-chest-computed-tomography-imaging
#18
Revathi Balakrishnan, Brian Nguyen, Roy Raad, Robert Donnino, David P Naidich, Jill E Jacobs, Harmony R Reynolds
BACKGROUND: Coronary artery calcification as assessed by computed tomography (CT) is a validated predictor of cardiovascular risk, whether identified on a dedicated cardiac study or on a routine non-gated chest CT. The prevalence of incidentally detected coronary artery calcification on non-gated chest CT imaging and consistency of reporting have not been well characterized. HYPOTHESIS: Coronary calcification is present on chest CT in some patients not taking statin therapy and may be under-reported...
March 16, 2017: Clinical Cardiology
https://www.readbyqxmd.com/read/28298577/trauma-imaging-a-literature-review
#19
Jason Heath Vela, Christopher Ira Wertz, Kimberly L Onstott, Joss R Wertz
PURPOSE: To inform radiologic technologists about which imaging modalities and examinations are best suited for evaluating specific anatomical structures in patients who have sustained a traumatic injury. METHODS: Two scholarly research databases were searched to identify articles focused on trauma imaging of the head, cervical spine, thorax, abdomen, and pelvis. Articles focused on trauma diagnosis were excluded. Thirty-two articles were selected for analysis. DISCUSSION: Physical examination and plain-film radiographs typically are used to assess nasal bone fracures...
January 2017: Radiologic Technology
https://www.readbyqxmd.com/read/28297341/assessment-of-monte-carlo-algorithm-for-compliance-with-rtog-0915-dosimetric-criteria-in-peripheral-lung-cancer-patients-treated-with-stereotactic-body-radiotherapy
#20
Damodar Pokhrel, Sumit Sood, Rajeev Badkul, Hongyu Jiang, Christopher McClinton, Christopher Lominska, Parvesh Kumar, Fen Wang
The purpose of the study was to evaluate Monte Carlo-generated dose distributions with the X-ray Voxel Monte Carlo (XVMC) algorithm in the treatment of peripheral lung cancer patients using stereotactic body radiotherapy (SBRT) with non-protocol dose-volume normalization and to assess plan outcomes utilizing RTOG 0915 dosimetric compliance criteria. The Radiation Therapy Oncology Group (RTOG) protocols for non-small cell lung cancer (NSCLC) currently require radiation dose to be calculated using tissue density heterogeneity corrections...
May 2016: Journal of Applied Clinical Medical Physics
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