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https://www.readbyqxmd.com/read/28526539/diagnostic-accuracy-of-lung-subtraction-iodine-mapping-ct-for-the-evaluation-of-pulmonary-perfusion-in-patients-with-chronic-thromboembolic-pulmonary-hypertension-correlation-with-perfusion-spect-ct
#1
Masashi Tamura, Yoshitake Yamada, Takashi Kawakami, Masaharu Kataoka, Yu Iwabuchi, Hiroaki Sugiura, Masahiro Hashimoto, Tadaki Nakahara, Shigeo Okuda, Seishi Nakatsuka, Fumiya Sano, Takayuki Abe, Yuichiro Maekawa, Keiichi Fukuda, Masahiro Jinzaki
BACKGROUND: For treatment of chronic thromboembolic pulmonary hypertension (CTEPH), the evaluation of segmental pulmonary perfusion is important. There are no previous reports about lung subtraction iodine mapping (LSIM) computed tomography (CT) for evaluation of segmental pulmonary perfusion in patients with CTEPH, using lung perfusion SPECT/CT (LPS) as the reference. METHODS: 50 patients (age, 60.7±16.7years) with known or suspected CTEPH were enrolled in this study...
May 4, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28523162/a-preliminary-exploration-of-the-intravoxel-incoherent-motion-applied-in-the-preoperative-evaluation-of-mediastinal-lymph-node-metastasis-of-lung-cancer
#2
Xin Ye, Shuo Chen, Yaru Tian, Bin You, Wenqian Zhang, Yan Zhao, Tao Jiang, Bin Hu, Hui Li
BACKGROUND: The aim of this study was to investigate the diagnostic value of the intravoxel incoherent motion (IVIM) for distinguishing non-metastatic from metastatic mediastinal lymph nodes in lung cancer. METHODS: IVIM-diffusion weighted imaging (DWI) exams were performed preoperatively on 66 patients with lung cancer from October 2015 to June 2016 in Beijing Chao-Yang Hospital, Capital Medical University. Fifty patients underwent enhanced chest computed tomography (CT) in our hospital, while the other 16 patients already had enhanced chest CT images when they were admitted...
April 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28522112/diffuse-parenchymal-lung-disease-on-chest-radiographs-and-ct
#3
Theodore J Dubinsky, Hardik Shah, Rachelle Sonneborn, Daniel S Hippe
BACKGROUND: We prospectively identified B-lines in patients undergoing ultrasound examinations following liver transplants who also had a chest x-ray (CXR) and/or chest CT scan on the same day to determine if an association between the presence of B-lines s from the thorax on ultrasound images correlates with the presence of pulmonary abnormalities on chest radiographs. MATERIALS AND METHODS: Following IRB approval, patients undergoing routine postoperative liver transplant ultrasound examinations and a CXR and/or CT scan on the same day between 1/1/2015 through 7/1/2016 were prospectively identified...
May 15, 2017: Chest
https://www.readbyqxmd.com/read/28516314/harmonic-subtraction-for-evaluating-right-ventricle-ejection-fraction-from-planar-equilibrium-radionuclide-angiography
#4
Dacian V Bonta, John N Aarsvold, Sandra F Grant, Naomi P Alazraki
We report an initial investigation of a subtraction-based method to estimate right ventricle ejection fraction (RVEF) from ECG-gated planar equilibrium radionuclide angiography (ERNA) data. Twenty-six consecutive patients referred for scintigraphic evaluation of cardiac function prior to chemotherapy had ECG-gated first-pass (FP) imaging and ERNA imaging performed following the same radiotracer injection. RVEF was computed from FP images (RVEFFP) and separately from ERNA images (RVEFERNA). Standard methods for computing ejection fractions were used to obtain RVEFFP values...
May 17, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28515414/mediastinal-solitary-fibrous-tumor-diagnosed-by-endobronchial-ultrasound-directed-biopsy
#5
Alaina J Webb, Ahmed S Yassin, Ali Saeed, Hemang Yadav, James P Utz
BACKGROUND Solitary fibrous tumors of the middle mediastinal space are uncommon and often not discovered until symptoms secondary to compression of adjacent structures occur. Diagnosis requires surgical biopsy and histological tissue analysis. We describe the ECHO appearance of the solitary fibrous tumor and successful non-invasive EBUS diagnosis. This method of diagnosis allowed for surgical planning for resection and allowed us to exclude non-surgical diseases, such as small cell carcinoma. CASE REPORT A 32-year-old man presented to his primary care physician with worsening intermittent chronic chest pain with recent progressive dysphagia, cough, and dyspnea...
May 18, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28512099/mitral-valve-vegetation-diagnosed-with-oesophageal-ultrasound-with-bronchoscope-eus-b
#6
Ajoe John Kattoor, Yogita M Rochlani, Kevin Kuriakose, Nikhil K Meena
Oesophageal ultrasound with bronchoscope (EUS-B) is designed to evaluate mediastinal structures. We describe a case of a 78-year-old woman who presented with altered mental status for 2 weeks. CT head revealed a subacute infarct in the right middle cerebral artery distribution. She was also found to have a lung mass on chest imaging. EUS-B-guided fine needle aspiration demonstrated the presence of adenocarcinoma in station 7 lymph node and in the mass. Immunohistochemistry confirmed it to be a lung primary as the Thyroid Transcription Factor-1 (TTF-1) was strongly positive...
May 15, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28504545/detection-of-hemodynamically-significant-coronary-artery-stenosis-with-ct-enhancement-ratio-a-validation-study-in-a-porcine-model
#7
Jun Chen, Yang Pu, Zhang Zhang, Xuefang Yu, Zhengwen Yang
OBJECTIVE: Although numerous techniques that are based on CT number analysis have been proposed, the assessment of hemodynamically significant coronary artery stenosis remains a great challenge. The purpose of this study is to validate use of the CT enhancement ratio in the detection of hemodynamically significant coronary artery stenosis in a porcine model. MATERIALS AND METHODS: Experiments involving eight closed-chest swine were performed. A balloon catheter was placed into the left anterior descending coronary artery to simulate different degrees of luminal stenosis...
May 15, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28500579/robotic-repair-of-a-right-sided-bochdalek-hernia-a-case-report-and-literature-review
#8
Amani Jambhekar, Shawn Robinson, Brian Housman, James Nguyen, Kevin Gu, Vadim Nakhamiyayev
BACKGROUND: Bochdalek hernias (BHs) are usually diagnosed in the neonatal period, occurring in 1/2200-1/12,500 live births. There are few reported cases of BHs in adults. Robotic repair has not been described in current literature as opposed to the laparoscopic approach. Here we present a case of an adult with clinical signs of bowel obstruction secondary to a BH which was repaired using a robotic approach. CASE REPORT: A 74-year-old gentleman with past medical history of benign prostatic hyperplasia presented to the emergency department with a 1-week history of nausea, vomiting, diarrhea, and decline in appetite...
May 12, 2017: Journal of Robotic Surgery
https://www.readbyqxmd.com/read/28500364/radiologists-need-to-be-aware-of-secondary-central-venous-stenosis-in-patients-with-sapho-syndrome
#9
Mizuho Suzuki, Hidenori Kanazawa, Takeshi Shinozaki, Hideharu Sugimoto
OBJECTIVES: We aimed to define central venous stenosis (CVS) caused by sternocostoclavicular hyperostosis as a feature of synovitis-acne-pustulosis-hyperostosis-osteitis (SAPHO) syndrome on routine contrast-enhanced computed tomography (CT) images. The relationship between SAPHO syndrome and CVS without venous thrombosis caused by anterior chest wall compression has not been investigated. Therefore, the present study evaluated CVS in patients with SAPHO syndrome at our hospital. METHODS: We retrospectively reviewed contrast-enhanced CT images of ten patients with suspected or diagnosed SAPHO syndrome between January 2007 and November 2015...
May 12, 2017: European Radiology
https://www.readbyqxmd.com/read/28499711/does-an-external-chest-wall-measurement-correlate-with-a-ct-based-measurement-in-patients-with-chest-wall-deformities
#10
Franziska Ewert, Julia Syed, Sonja Wagner, Manuel Besendoerfer, Roman T Carbon, Stefan Schulz-Drost
BACKGROUND: Measurements in chest wall deformities are typically conducted using a thorax caliper or a CT scan of the chest wall. This paper focuses on the possible correlation between these two methods to validate the reliability of the thorax caliper, minimize radiation exposure, and limit the usage of expensive imaging techniques. METHODS: We evaluated 95 consecutive patients (77 pectus excavatum (PE), 17 pectus carinatum (PC), 1 mixed deformity) who received surgical correction of the anterior chest wall...
April 27, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28493789/idiopathic-pulmonary-fibrosis-data-driven-textural-analysis-of-extent-of-fibrosis-at-baseline-and-15-month-follow-up
#11
Stephen M Humphries, Kunihiro Yagihashi, Jason Huckleberry, Byung-Hak Rho, Joyce D Schroeder, Matthew Strand, Marvin I Schwarz, Kevin R Flaherty, Ella A Kazerooni, Edwin J R van Beek, David A Lynch
Purpose To evaluate associations between pulmonary function and both quantitative analysis and visual assessment of thin-section computed tomography (CT) images at baseline and at 15-month follow-up in subjects with idiopathic pulmonary fibrosis (IPF). Materials and Methods This retrospective analysis of preexisting anonymized data, collected prospectively between 2007 and 2013 in a HIPAA-compliant study, was exempt from additional institutional review board approval. The extent of lung fibrosis at baseline inspiratory chest CT in 280 subjects enrolled in the IPF Network was evaluated...
May 10, 2017: Radiology
https://www.readbyqxmd.com/read/28490986/image-guided-sbrt-for-multiple-liver-metastases-with-exactrac-%C3%A2-adaptive-gating
#12
Carmen Rubio, Ovidio Hernando-Requejo, Daniel Zucca Aparicio, María ALlona Krauel, Mercedes López Gonzalez, Juan María Pérez, Emilio Sánchez Saugar, Pedro Fernández Letón
AIM: To report the outcome and toxicity of sequential stereotactic body radiotherapy (SBRT) for multiple liver metastases in patients treated with ExacTrac Adaptive Gating. BACKGROUND: In selected patients with a limited number of liver metastases, SBRT has been evaluated as a safe and effective treatment, with minimal toxicity and high rates of local control. MATERIALS AND METHODS: From April 2008 to October 2013, 21 patients with multiple (3-14) liver metastases (n = 101) were treated sequentially with SBRT at our institution...
March 2017: Reports of Practical Oncology and Radiotherapy
https://www.readbyqxmd.com/read/28490939/measuring-quality-care-in-localized-renal-cell-cancer-use-of-appropriate-preoperative-investigations-in-a-population-based-cohort
#13
N Moideen, K H Marzouk, K J Matheson, L A Wood
INTRODUCTION: Obtaining appropriate preoperative risk-specific staging investigations for localized renal cell carcinoma (rcc) is a recognized quality indicator. The goal of the present work was to determine the use and appropriateness of preoperative investigations in patients undergoing curative surgery for rcc. METHODS: This population-based retrospective study of patients having surgery for localized rcc recorded the use of preoperative imaging and laboratory investigations within 6 months of surgery...
April 2017: Current Oncology
https://www.readbyqxmd.com/read/28489417/a-semiquantitative-ct-grading-system-for-evaluating-therapeutic-response-in-pulmonary-alveolar-proteinosis
#14
Sayoko Tokura, Masanori Akira, Tomohisa Okuma, Ryushi Tazawa, Toru Arai, Chikatoshi Sugimoto, Akiko Matsumuro, Masaki Hirose, Toshinori Takada, Koh Nakata, Haruyuki Ishii, Yasunori Kasahara, Masayuki Hojo, Shinya Ohkouchi, Yoshiko Tsuchihashi, Masanori Yokoba, Ryosuke Eda, Hideaki Nakayama, Takahito Nei, Konosuke Morimoto, Yasuyuki Nasuhara, Masahito Ebina, Toshio Ichiwata, Koichiro Tatsumi, Etsuro Yamaguchi, Yoshikazu Inoue
RATIONALE: A useful semi-quantitative method of using CT images to evaluate therapeutic response in pulmonary alveolar proteinosis (PAP) has not been established, although the extent score or grading score of ground-glass opacities has been used. OBJECTIVES: The purpose of this study was to establish a semi-quantitative method for evaluating therapeutic response in PAP. METHODS: CT scans obtained within one month before and after the therapy from 32 patients with PAP who participated in a multicenter phase 2 trial of GM-CSF inhalation therapy were evaluated by two chest radiologists independently...
May 10, 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/28484154/spontaneous-regression-of-methotrexate-related-diffuse-large-b-cell-lymphoma-following-bladder-lesion-resection
#15
Michiko Yamada, Hiroyuki Kuroda, Ken Sato, Shogo Miura, Saki Ameda, Hiroya Sakano, Takanori Shibata, Naoki Uemura, Tomoyuki Abe, Shigeyuki Fujii, Masahiro Maeda, Miri Fujita, Junji Kato
A 71-year-old woman who had been treated with methotrexate (MTX) and prednisolone for rheumatoid arthritis since 2010 presented with hematuria. Cystitis was diagnosed. Chest and abdominal CT images revealed a bladder tumor, with lung and bilateral adrenal metastases. Transurethral resection of the bladder tumor (TUR-BT) confirmed these findings in September 2014. Histological findings of the bladder included large atypical lymphoid cells indicating diffuse large B-cell lymphoma. After TUR-BT, CT imaging showed that the tumor had shrunk...
2017: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
https://www.readbyqxmd.com/read/28482911/rapid-development-of-metastatic-pulmonary-calcifications-in-primary-hyperparathyroidism-a-case-report-and-literature-review
#16
Hui-Ming Sun, Fei Chen, Hong-Lin Yin, Xiao-Yong Xu, Hong-Bing Liu, Bei-Lei Zhao
BACKGROUND: Metastatic pulmonary calcification (MPC) is rarely reported in primary hyperparathyroidism, especially MPC develops quickly. We report such a case here with a literature review. CASE PRESENTATION: A 41-year-old woman presented with cough and dyspnea. Data from clinical, radiological, pathological, technetium ((99m)Tc)-methylene diphosphonate (MDP) bone scintillation imaging, and (99m)Tc-methoxy isobutyl isonitrile (MIBI) thyroid imaging were studied...
May 8, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28482765/incidental-renal-tumours-on-low-dose-ct-lung-cancer-screening-exams
#17
Paul F Pinsky, Barbara Dunn, David Gierada, P Hrudaya Nath, Reginald Munden, Lincoln Berland, Barnett S Kramer
Introduction Renal cancer incidence has increased markedly in the United States in recent decades, largely due to incidentally detected tumours from computed tomography imaging. Here, we analyze the potential for low-dose computed tomography lung cancer screening to detect renal cancer. Methods The National Lung Screening Trial randomized subjects to three annual screens with either low-dose computed tomography or chest X-ray. Eligibility criteria included 30 + pack-years, current smoking or quit within 15 years, and age 55-74...
June 2017: Journal of Medical Screening
https://www.readbyqxmd.com/read/28481801/fdg-avid-keloid-on-pet-ct-imaging
#18
Zu-Gui Li
Keloid is a benign fibroproliferative growths resulting from an overexuberant healing response. A 51-year-old man with a 20-year history of keloid formation presented with a 1-year history of unexplained progressive weakness of both lower limbs. He was clinically suspected of having paraneoplastic neurologic syndrome. FDG PET/CT was performed to exclude underlying malignancy. FDG PET/CT revealed a giant FDG-avid keloid in the anterior chest wall without any other abnormal FDG uptake in the body. We emphasize that a benign FDG-avid keloid should be considered in the differential diagnosis of FDG-avid cutaneous lesions on PET/CT...
May 5, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28481799/a-rare-case-of-urachal-carcinoma-metastatic-to-thoracic-vertebra-detected-by-fdg-pet-ct
#19
Guangjie Yang, Zhenguang Wang, Simin Liu, Fengyu Wu, Dacheng Li
Both chest radiography and MRI scan showed compression fracture of the T6 vertebral body in a 33-year-old man who presented with back pain. Because of the absence of predisposing factors for compression fracture, a pathologic fracture was considered. For this reason, an FDG PET/CT was performed. The images revealed not only the abnormal activity in the known T6 vertebral body but also an additional activity immediately anterosuperior to the urinary bladder in a partially calcified soft tissue nodule. A mucinous adenocarcinoma of urachus with solitary bone metastasis was confirmed histopathologically...
May 5, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28480751/ct-pulmonary-angiography-in-young-women
#20
Paul D Stein, Fadi Matta, Kate E Hughes, Mary J Hughes
The purpose was to determine whether young women in the emergency department who received computed tomographic (CT) pulmonary angiograms were evaluated to receive lower dose imaging or no imaging, recognizing that the risks of radiation are particularly high in young women. This was a retrospective cohort investigation of women aged 18 to 29 years seen for suspected acute pulmonary embolism in emergency departments of 5 regional hospitals from May 1, 2015 to April 30, 2016. Computed tomographic (CT) pulmonary angiograms were obtained in 379 young women...
January 1, 2017: Clinical and Applied Thrombosis/hemostasis
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