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Ct chest imaging

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https://www.readbyqxmd.com/read/28932697/thoracic-wall-trauma-misdiagnosed-lesions-on-radiographs-and-usefulness-of-ultrasound-multidetector-computed-tomography-and-magnetic-resonance-imaging
#1
REVIEW
Xavier Tomas, Catherine Facenda, Nuno Vaz, Edgar Augusto Castañeda, Montserrat Del Amo, Ana Isabel Garcia-Diez, Jaime Pomes
Blunt injuries to the chest wall are an important chapter on emergency room (ER) departments, being the third most common injuries in trauma patients which ominous complications could appear. This article describes different types of traumatic events affecting the chest wall, which maybe misdiagnosed with conventional X-ray. Special emphasis has been done in computed tomography (CT) and multidetector CT (MDCT) imaging. This technique is considered the "gold-standard" for those traumatic patients, due to its fast acquisition covering the whole area of interest in axial plane, reconstructing multiplanar (2D, 3D) volume-rendered images with a superb quality and angiographic CT capabilities for evaluating vascular damage...
August 2017: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/28932548/predictors-of-conversion-to-thoracotomy-during-video-assisted-thoracoscopic-surgery-lobectomy-in-lung-cancer-additional-predictive-value-of-fdg-pet-ct-in-a-tuberculosis-endemic-region
#2
Chun Geun Lim, Kyung Min Shin, Ji Seun Lim, Jae Kwang Lim, Hye Jung Kim, Won Hwa Kim, Seung Hyun Cho, Seung Ick Cha, Eung Bae Lee, Yangki Seock, Shin Young Jeong
BACKGROUND: To evaluate the added clinical value of (18)F-fluorodeoxyglucose (FDG) positron emission tomography/computed tomography (PET/CT) scans to chest CT imaging in predicting the conversion to thoracotomy during video-assisted thoracoscopic surgery (VATS) lobectomy in patients with lung cancer. METHODS: This is a retrospective study of 235 consecutive patients who underwent planned VATS lobectomy for primary lung cancer between 2011 and 2015. CT images were interpreted in terms of the presence and the attenuation of peribronchial lymph nodes (PLN) and peribronchial cuffs of soft (PCS) tissue, pleural calcification, and parenchymal calcified nodule...
August 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28930942/surgical-residents-interpretation-of-diagnostic-radiologic-imaging-in-the-traumatically-injured-patient
#3
Elias Fakhoury, Daria Abolghasemi, Justin McKinney, Alena Naumova, Scott Wessner, Osama Elsawy, Jamshed Zuberi, Robert V Madlinger
BACKGROUND: Senior surgical residents are of paramount importance in directing further therapeutic modalities based on their interpretation of critical diagnostic imaging. We propose that senior surgical residents are proficient with interpreting radiologic imaging studies in the trauma patient. METHODS: A prospective cohort study was performed comparing surgery resident interpretations of computerized tomography (CT) scans of the head, maxillofacial bones, spine (cervical, thoracic, lumbar), chest, abdomen, pelvis, and chest X-rays versus final radiologists' reports at a level II trauma center from September 2014 to May 2015...
September 20, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28927984/limiting-thoracic-ct-a-rule-for-use-during-initial-pediatric-trauma-evaluation
#4
Caroline Q Stephens, Meredith C Boulos, Christopher R Connelly, Arvin Gee, Mubeen Jafri, Sanjay Krishnaswami
BACKGROUND: Despite increases in imaging guidelines for other body-regions during initial trauma assessment and the demonstrated utility of chest radiographs (CXR), guidelines for use of thoracic computed-tomography (TCT) are lacking. We hypothesized that TCT utilization had not decreased relative to other protocolized CTs, and mechanism and CXR could together predict significant injury independent of TCT. METHODS: We performed a retrospective review of blunt trauma patients ≤18 y...
September 4, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28924570/implementation-and-ct-sampling-characterization-of-a-third-generation-spect-ct-system-for-dedicated-breast-imaging
#5
Jainil P Shah, Steve D Mann, Randolph L McKinley, Martin P Tornai
Stand-alone cone beam computed tomography (CT) and single-photon emission computed tomography (SPECT) systems capable of complex acquisition trajectories have previously been developed for breast imaging. Fully three-dimensional (3-D) motions of SPECT systems provide views into the chest wall and throughout the entire volume. The polar tilting capability of the CBCT system has shown improvement in sampling close to the chest wall, while eliminating cone beam artifacts. Here, a single hybrid SPECT-CT system, with each individual modality capable of independently traversing complex trajectories around a common pendant breast volume, was developed...
July 2017: Journal of Medical Imaging
https://www.readbyqxmd.com/read/28920094/convolutional-auto-encoder-for-image-denoising-of-ultra-low-dose-ct
#6
Mizuho Nishio, Chihiro Nagashima, Saori Hirabayashi, Akinori Ohnishi, Kaori Sasaki, Tomoyuki Sagawa, Masayuki Hamada, Tatsuo Yamashita
OBJECTIVES: The purpose of this study was to validate a patch-based image denoising method for ultra-low-dose CT images. Neural network with convolutional auto-encoder and pairs of standard-dose CT and ultra-low-dose CT image patches were used for image denoising. The performance of the proposed method was measured by using a chest phantom. MATERIALS AND METHODS: Standard-dose and ultra-low-dose CT images of the chest phantom were acquired. The tube currents for standard-dose and ultra-low-dose CT were 300 and 10 mA, respectively...
August 2017: Heliyon
https://www.readbyqxmd.com/read/28917584/pneumatoceles-in-pediatric-blunt-trauma-common-and-benign
#7
Lindsey B Armstrong, David P Mooney
INTRODUCTION: Traumatic pneumatoceles are reported to be rare in children and to have an uncertain clinical significance. We report a single institution series of traumatic pneumatoceles to better define their frequency and clinical significance. METHODS: After obtaining approval from the IRB, data were extracted from the trauma registry of a level 1 pediatric trauma center on children diagnosed with a pulmonary contusion (International Classification of Diseases-9th edition diagnosis codes: 861...
August 7, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28913157/non-functioning-gastroenteropancreatic-gep-tumors-a-111-in-pentetreotide-spect-ct-diagnostic-study
#8
Angela Spanu, Orazio Schillaci, Bastiana Piras, Diego F Calvisi, Antonio Falchi, Roberta Danieli, Susanna Nuvoli, Franca Dore, Giuseppe Madeddu
In a retrospective study performed in non-functioning GEP tumor patients we further investigated (111)In-Pentetreotide SPECT/CT usefulness in diagnosis, staging and follow-up also evaluating whether the procedure may give more information than conventional imaging procedures (CIP), such as CT, MRI, US. We enrolled 104 consecutive patients with non-functioning GEP tumors, 30 in initial diagnosis and staging phases (IDS) and 74 in follow-up (FU). All patients underwent somatostatin receptor scintigraphy (SRS) whole body scan at 4, 24 and, if necessary, 48 hours followed by abdominal and chest SPECT/CT after (111)In-Pentetreotide 148-222 MBq i...
2017: American Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28912997/laparoscopic-repair-of-diaphragmatic-rupture-a-case-report-with-radiological-and-surgical-correlation
#9
Patrick Nguyen, Bonnie Davis, Daniel D Tran
The leading cause of diaphragmatic rupture is penetrating abdominal trauma, including gunshot- and stab-related wounds; however, diaphragmatic rupture can also result from blunt trauma to the abdomen. The diagnosis can be difficult to make as the physical examination may be unremarkable, and imaging, that is, a conventional chest X-ray and/or CT imaging, may initially fail to reveal the injury. Failure to recognize diaphragmatic rupture can result in a delayed presentation, sometimes years later, with a potential catastrophic outcome...
2017: Case Reports in Surgery
https://www.readbyqxmd.com/read/28911363/bronchial-angles-are-associated-with-nodular-bronchiectatic-non-tuberculous-mycobacteria-lung-disease
#10
T Lee, J Y Park, H Y Lee, H-J Lim, J S Park, Y-J Cho, T J Kim, K W Lee, J H Lee, C-T Lee, H I Yoon
BACKGROUND: The nodular bronchiectatic (NB) form of non-tuberculous mycobacteria (NTM) lung disease usually involves the right middle lobe (RML) and the left upper lobe lingular segment. However, the reason underlying this preference is not known. METHODS: Fifty patients with NB NTM lung disease who had both positive NTM culture(s) and NB lesions in the RML or lingular segment on computed tomography (CT) of the chest, and 100 healthy subjects matched for sex, age, height and body weight with normal chest CT, were randomly selected...
October 1, 2017: International Journal of Tuberculosis and Lung Disease
https://www.readbyqxmd.com/read/28905535/are-there-any-additional-benefits-to-performing-positron-emission-tomography-computed-tomography-scans-and-brain-magnetic-resonance-imaging-on-patients-with-ground-glass-nodules-prior-to-surgery
#11
Jae Uk Song, Junwhi Song, Kyung Jong Lee, Hojoong Kim, O Jung Kwon, Joon Young Choi, Jhingook Kim, Joungho Han, Sang Won Um
BACKGROUND: A ground-glass nodule (GGN) represents early-stage lung adenocarcinoma. However, there is still no consensus for preoperative staging of GGNs. Therefore, we evaluated the need for the routine use of positron emission tomography/computed tomography (PET)/computed tomography (CT) scans and brain magnetic resonance imaging (MRI) during staging. METHODS: A retrospective analysis was undertaken in 72 patients with 74 GGNs of less than 3 cm in diameter, which were confirmed via surgery as malignancy, at the Samsung Medical Center between May 2010 and December 2011...
September 1, 2017: Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/28905390/validation-of-the-gatortail-method-for-accurate-sizing-of-pulmonary-vessels-from-3d-medical-images
#12
Walter G O'Dell, Anne K Gormaley, David A Prida
PURPOSE: Detailed characterization of changes in vessel size is crucial for the diagnosis and management of a variety of vascular diseases. Because clinical measurement of vessel size is typically dependent on the radiologist's subjective interpretation of the vessel borders, it is often prone to high inter- and intra-user variability. Automatic methods of vessel sizing have been developed for two-dimensional images but a fully three-dimensional (3D) method suitable for vessel sizing from volumetric X-ray computed tomography (CT) or magnetic resonance imaging has heretofore not been demonstrated and validated robustly...
September 14, 2017: Medical Physics
https://www.readbyqxmd.com/read/28901615/model-based-dose-reconstruction-for-ct-dose-estimation
#13
Mingye Wu, Zhye Yin, Bruno De Man
PURPOSE: Our goal is to develop a model-based approach for CT dose estimation. We previously presented a CT dose estimation method that offered good accuracy in soft tissue regions but lower accuracy in bone regions. In this work, we propose an improved physic-based approach to achieve high accuracy for any materials and realistic clinical anatomies. METHODS: Like Monte Carlo techniques, we start from a model or image of the patient and we model all relevant x-ray interaction processes...
September 2017: Medical Physics
https://www.readbyqxmd.com/read/28900525/a-case-of-legionella-pneumophila-evaluated-with-ct-and-ultrasound
#14
Alessio D'Angelo, Chiara De Simone, Marco Pagnottella, Stefano Rossi, Raffaele Pepe, Giacomo Ruggieri, Giulio Cocco, Cosima Schiavone
A 36-year-old man was admitted to the emergency department of "SS Annunziata" hospital in Chieti complaining of a sharp chest pain arisen some hours before admission. On examination, the patient looked sweaty; his vital signs showed tachycardia and augmented breath rate; sinus tachycardia and normal ventricular repolarization were observed on ECG, and no abnormalities were observed in the echoscan of the hearth. According to the clinical and electrocardiographic findings, and to previous episode of DVT in anamnesis, a thorax CT scan was performed in order to rule out pulmonary embolism...
September 2017: Journal of Ultrasound
https://www.readbyqxmd.com/read/28898798/free-disease-long-term-survival-in-primary-thoracic-spine-leiomyosarcoma-after-total-en-bloc-spondylectomy-a-case-report
#15
José Ramirez-Villaescusa, Adriana Canosa-Fernández, Antonio Martin-Benlloch, David Ruiz-Picazo, Jesús López-Torres Hidalgo
INTRODUCTION: To describe an unusual primary vertebral leiomyosarcoma in thoracic spine. PRESENTATION OF CASE: An isolated lesion of the T11 vertebra in a 62-year-old woman with no neurologic deficit is reported. Imaging findings indicated a nonspecific high-grade malignant lesion. TC-guided biopsy failed thus open incisional biopsy was needed. A diagnosis of low-intermediate mesenchymal sarcoma was made. A total en bloc spondylectomy of T11 was performed with three-column reconstruction...
September 1, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28895189/-diagnosis-of-a-hiatal-hernia-from-a-ct-coronary-artery-calcium-scan
#16
Edmund Kenneth Kerut, John T Balart
Identification of a hiatal hernia by computed tomography (CT) scanning, and particularly with axial imaging from a coronary artery calcium score exam, is often subjective. There are several CT features that are diagnostic or at least suggestive of a hiatal hernia. As a hiatal hernia may be the etiology of a chest pain syndrome, it is important to be aware of CT findings suggestive of such.
September 12, 2017: Echocardiography
https://www.readbyqxmd.com/read/28895098/recurrent-cerebral-attack-caused-by-thrombosis-in-the-pulmonary-vein-stump-in-a-patient-with-left-upper-lobectomy-on-anticoagulant-therapy-case-report-and-literature-review
#17
Takahito Nakano, Mayumi Inaba, Hiroyuki Kaneda
BACKGROUND: Thrombus formation in the pulmonary vein stump after pulmonary resection has recently been identified as a cause of systemic thrombosis including brain infarction. However, there is limited research focusing on the clinical course of pulmonary vein stump thrombus, and optimal treatment and prevention strategies of this important complication have not been established. CASE PRESENTATION: A 77-year-old woman was diagnosed with lung cancer of the left upper lobe, cT4N2M0, cStage IIIB...
September 11, 2017: Surgical Case Reports
https://www.readbyqxmd.com/read/28894327/detection-of-distant-metastases-in-patients-with-locally-advanced-breast-cancer-role-of-18-f-fluorodeoxyglucose-positron-emission-tomography-computed-tomography-and-conventional-imaging-with-computed-tomography-scans
#18
Almir Galvão Vieira Bitencourt, Wesley Pereira Andrade, Rodrigo Rodrigues da Cunha, Jorge Luis Fonseca de Acioli Conrado, Eduardo Nóbrega Pereira Lima, Paula Nicole Vieira Pinto Barbosa, Rubens Chojniak
OBJECTIVE: To evaluate positron emission tomography/computed tomography (PET/CT) and conventional imaging tests for the detection of distant metastases in patients with locally advanced breast cancer. MATERIALS AND METHODS: We included 81 patients with breast cancer who had undergone (18)F-fluorodeoxyglucose (FDG) PET/CT before treatment. Conventional imaging included the following: bone scintigraphy; chest X-ray (in 14.5%) or CT (in 85.5%); and abdominal ultrasound (in 10...
July 2017: Radiologia Brasileira
https://www.readbyqxmd.com/read/28894055/-igg4-related-periaortitis-manifested-as-contained-rupture-of-penetrating-atherosclerotic-ulcer
#19
Takeshi Someya, Shogo Sakurai, Toshizumi Shirai
We report a case of IgG4-related periaortitis of the descending aorta manifested as a contained rupture of penetrating atherosclerotic ulcer(PAU). A 67-year-old male was admitted to our hospital complaining about chest pain. Computed tomography(CT) and magnetic resonance imaging revealed PAU with extravasation of the descending aorta and thickening of surrounding tissues. Fluorodeoxyglucose-positron emission tomography (FDG-PET) CT demonstrated abnormal accumulation of FDG at the thickening sites, and serum IgG4 value was abnormally high...
September 2017: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/28892454/disease-staging-and-prognosis-in-smokers-using-deep-learning-in-chest-computed-tomography
#20
Germán González, Samuel Y Ash, Gonzalo Vegas Sanchez-Ferrero, Jorge Onieva Onieva, Farbod N Rahaghi, James C Ross, Alejandro Díaz, Raúl San José Estépar, George R Washko
RATIONALE: Deep learning is a powerful tool that may allow for improved outcome prediction. OBJECTIVES: To determine if deep learning, specifically convolutional neural network (CNN) analysis, could detect and stage chronic obstructive pulmonary disease (COPD) and predict acute respiratory disease events (ARD) and mortality in smokers. METHODS: A CNN was trained using CT scans from 7,983 COPDGene participants and evaluated using 1000 non-overlapping COPDGene participants and 1,672 ECLIPSE participants...
September 11, 2017: American Journal of Respiratory and Critical Care Medicine
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