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https://www.readbyqxmd.com/read/29667882/new-doppler-imaging-technique-for-assessing-angiogenesis-in-breast-tumors-correlation-with-immunohistochemically-analyzed-microvessels-density
#1
Sewha Kim, Hye Jin Lee, Kyung Hee Ko, Ah Young Park, Jieun Koh, Hae Kyoung Jung
Background Microvessel density (MVD) is associated with grade and prognosis in breast tumors. However, conventional color Doppler flow (CDF) imaging has been limited to represent MVD of breast tumors. Purpose To evaluate whether a new Doppler imaging technique (AngioPLUS) can represent MVD of breast tumors. Material and Methods The institutional review board approved this retrospective study, and patients' informed consent was waived. CDF and AngioPLUS were available in pathologically confirmed 55 breast tumors of 53 women...
January 1, 2018: Acta Radiologica
https://www.readbyqxmd.com/read/29667606/applying-a-new-computer-aided-detection-scheme-generated-imaging-marker-to-predict-short-term-breast-cancer-risk
#2
Seyedehnafiseh Mirniaharikandehei, Alan B Hollingsworth, Bhavika Patel, Morteza Heidari, Hong Liu, Bin Zheng
This study aims to investigate the feasibility of identifying a new quantitative imaging marker based on false-positives generated by computer-aided detection (CAD) scheme to help predict short-term breast cancer risk. An image dataset including four view mammograms acquired from 1,044 women was retrospectively assembled. All mammograms were originally interpreted as negative by radiologists. In the next subsequent mammography screening, 402 women were diagnosed with breast cancer and 642 remained negative...
April 18, 2018: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/29667468/growth-hormone-receptor-gene-is-related-to-root-length-and-tooth-length-in-human-teeth
#3
Yu Hikita, Tetsutaro Yamaguchi, Daisuke Tomita, Mohamed Adel, Takatoshi Nakawaki, Koshu Katayama, Koutaro Maki, Ryosuke Kimura
OBJECTIVES: To examine the relationship between tooth length and growth hormone receptor (GHR) gene variants in a healthy Japanese population. MATERIALS AND METHODS: The subjects consisted of 193 Japanese adults (69 men, 124 women), aged 13 to 56 years. Genomic DNA was extracted from saliva and genotyped GHR rs6184 and rs6180 variants using the Taqman genotyping. Computed tomography (CT) images were acquired using a dental cone-beam CT scanner and reconstructed using open-source OsiriX medical image processing software...
April 18, 2018: Angle Orthodontist
https://www.readbyqxmd.com/read/29666952/utility-of-diffusion-weighted-mr-imaging-in-the-diagnosis-of-placenta-accreta-spectrum-abnormality
#4
Bhagya Sannananja, Anna Ellermeier, Daniel S Hippe, Thomas C Winter, Stella K Kang, Susanna I Lee, Mark R Kilgore, Manjiri K Dighe
PURPOSE: The aim of this study was to evaluate the utility of added DWI sequences as an adjunct to traditional MR imaging in the evaluation of abnormal placentation in patients with suspicion for placenta accreta spectrum abnormality or morbidly adherent placenta (MAP). MATERIALS AND METHODS: The study was approved by local ethics committee. The subjects included pregnant women with prenatal MRI performed between July 2013 to July 2015. All imaging was performed on a Philips 1...
April 17, 2018: Abdominal Radiology
https://www.readbyqxmd.com/read/29666814/digital-chest-tomosynthesis-the-2017-updated-review-of-an-emerging-application
#5
REVIEW
Arianna Ferrari, Luca Bertolaccini, Piergiorgio Solli, Paola Oriana Di Salvia, David Scaradozzi
Lung cancer is the leading cause of cancer death and second most common cancer among both men and women, but most of them are detected when patients become symptomatic and in late-stage. Chest radiography (CR) is a basic technique for the investigation of lung cancer and has the benefit of convenience and low radiation dose, but detection of malignancy is often difficult. The introduction of computed tomography (CT) for screening has increased the proportion of lung cancer detected but with higher exposure dose and higher costs...
March 2018: Annals of Translational Medicine
https://www.readbyqxmd.com/read/29665193/validation-of-a-motion-robust-2d-sequential-technique-for-quantification-of-hepatic-proton-density-fat-fraction-during-free-breathing
#6
B Dustin Pooler, Diego Hernando, Jeannine A Ruby, Hiroshi Ishii, Ann Shimakawa, Scott B Reeder
BACKGROUND: Current chemical-shift-encoded (CSE) MRI techniques for measuring hepatic proton density fat fraction (PDFF) are sensitive to motion artifacts. PURPOSE: Initial validation of a motion-robust 2D-sequential CSE-MRI technique for quantification of hepatic PDFF. STUDY TYPE: Phantom study and prospective in vivo cohort. POPULATION: Fifty adult patients (27 women, 23 men, mean age 57.2 years). FIELD STRENGTH/SEQUENCE: 3D, 2D-interleaved, and 2D-sequential CSE-MRI acquisitions at 1...
April 17, 2018: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/29665100/accuracy-of-ultrasound-for-preoperative-assessment-of-tumor-size-in-patients-with-newly-diagnosed-breast-cancer-is-it-affected-by-the-background-parenchymal-echotexture
#7
Kyung Hee Ko, Eun Ju Son, In Wha Kim
OBJECTIVES: To assess the impact of the background parenchymal echotexture on the accuracy of tumor size estimation using breast ultrasound (US). METHODS: A total of 140 women with newly diagnosed invasive breast cancer from January 2014 to December 2015 were enrolled in this study. Two radiologists retrospectively reviewed US images in consensus for background parenchymal echotexture interpretation. The maximum tumor diameter from static images was recorded. Tumor size measurements were considered as having agreement with histologic results if they were within ±5 mm compared to the pathologic size...
April 17, 2018: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/29664337/pancreatic-stiffness-quantified-with-mr-elastography-relationship-to-postoperative-pancreatic-fistula-after-pancreaticoenteric-anastomosis
#8
Yu Shi, Ying Liu, Feng Gao, Yanqing Liu, Shengzhen Tao, Yue Li, Kevin J Glaser, Richard L Ehman, Qiyong Guo
Purpose To describe the relationship between conventional magnetic resonance (MR) imaging parameters and MR elastography of the pancreas in association with pancreatic histologic features and occurrence of postoperative pancreatic fistula (POPF). Materials and Methods Patients who underwent preoperative MR imaging (MR elastography and diffusion-, T1-, and T2-weighted imaging) followed by pancreatectomy with pancreaticoenteric anastomosis were included. The relationships between preoperative MR imaging parameters, demographic data, and intraoperative factors with POPF risk were analyzed with logistic regression analyses...
April 17, 2018: Radiology
https://www.readbyqxmd.com/read/29664333/relationship-between-tooth-length-and-three-dimensional-mandibular-morphology
#9
Yu Hikita, Tetsutaro Yamaguchi, Daisuke Tomita, Mohamed Adel, Takatoshi Nakawaki, Koshu Katayama, Koutaro Maki, Ryosuke Kimura
OBJECTIVES: To clarify the relationship between tooth length and three-dimensional mandibular morphology in a healthy Japanese population. MATERIALS AND METHODS: This study included 181 Japanese adults: 66 men and 115 women. Cone-beam computed tomography (CBCT) images were acquired with a dentofacial cone-beam x-ray CT scanner. Tooth length was measured with open-source OsiriX medical image processing software. Crown height and root length were measured in the maxillary and mandibular central incisors, lateral incisors, canines, first premolars, second premolars, first molars, and second molars...
April 17, 2018: Angle Orthodontist
https://www.readbyqxmd.com/read/29664314/iran-pituitary-tumor-registry-description-of-the-program-and-initial-results
#10
Mohammad Ebrahim Khamseh, Mohammad Reza Mohajeri Tehrani, Zohreh Mousavi, Mojtaba Malek, Mehrnaz Imani, Nasim Hoshangian Tehrani, Mohammad Ghorbani, Hamideh Akbari, Farzaneh Sarvghadi, Atieh Amouzegar, Fatemeh Esfahanian, Nahid Hashemi Madani, Zahra Emami
BACKGROUND: This study was designed to present initial results on clinical presentation, therapeutic modalities, and outcome information of patients with pituitary tumors registered in Iran Pituitary Tumor Registry (IPTR). METHODS: We collected data from a web-based electronic medical records of patients with various pituitary tumors referred to four tertiary care centers in the country. Retrospective analysis was performed on demographic, clinical, and therapeutic information of 298 patients including 51 clinically nonfunctioning adenoma (CNFA), 85 acromegaly, 135 prolactinoma, and 27 Cushing's disease (CD)...
December 31, 2017: Archives of Iranian Medicine
https://www.readbyqxmd.com/read/29664200/prevalence-and-determinants-of-left-ventricular-diastolic-dysfunction-in-obese-subjects-and-the-role-of-left-ventricular-global-longitudinal-strain-and-mass-normalized-to-height
#11
Frank Lloyd Dini, Iacopo Fabiani, Mario Miccoli, Gian Giacomo Galeotti, Nicola Riccardo Pugliese, Andreina D'Agostino, Alessandra Scartabelli, Lorenzo Conte, Guido Salvetti, Ferruccio Santini, Roberto Pedrinelli
BACKGROUND: Left ventricular (LV) diastolic dysfunction (DD) is a frequent finding in obesity and may predispose to the development of heart failure (HF). However, no data are available on the prevalence of DD after the introduction of the 2016 Recommendations of the American Society of Echocardiography and the European Association of Cardiovascular Imaging. METHODS AND RESULTS: To assess the impact of the new Recommendations on the prevalence of DD and on their clinical and echocardiographic correlates in obesity, a prospective study was performed in 588 subjects with an ejection fraction (EF) ≥50% and no history of HF either obese (n = 402; mean age: 47 ± 12 years; women 71%; body mass index [BMI]: 44 ± 8 kg/m2 ), overweight (n = 86; BMI: 28 ± 1 kg/m2 ), or with a normal weight (n = 100; BMI: 22 ± 2 kg/m2 )...
April 17, 2018: Echocardiography
https://www.readbyqxmd.com/read/29663478/superb-microvascular-imaging-of-the-median-nerve-in-carpal-tunnel-syndrome-an-electrodiagnostic-and-ultrasonographic-study
#12
Ali Yavuz Karahan, Serdar Arslan, Banu Ordahan, Suleyman Bakdik, Timur Ekiz
OBJECTIVE: To evaluate intraneural blood flow of the median nerve using superb microvascular imaging (SMI) and power Doppler ultrasonography (PDUS), and to examine their correlation with electroneuromyography in patients with carpal tunnel syndrome (CTS). METHODS: A cross-sectional survey was used, and the study was conducted in the research unit of a training and research hospital. Patients diagnosed with CTS according to electroneuromyography studies were included in the study...
April 16, 2018: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/29663469/quantitative-ultrasound-analysis-of-proximal-and-distal-cervical-tissue-echogenicity-in-premature-cervical-remodeling
#13
Matthew J Blitz, Sleiman R Ghorayeb, Sarah L Pachtman, Megan Murphy, Zara Rahman, Lakha Prasannan, Cristina P Sison, Nidhi Vohra, Burton Rochelson
OBJECTIVES: To determine whether a novel, noninvasive quantitative ultrasound (US) technique can detect differences in proximal and distal cervical tissue echogenicity in women with and without a shortened cervical length (CL). METHODS: We conducted a retrospective case-control study of singleton pregnancies at 16 to 26 weeks' gestation in which a transvaginal US examination was performed to measure CL from 2013 to 2015. Initial CLs in cases and controls were less than 2...
April 16, 2018: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/29663459/a-simple-and-easy-technique-for-imaging-the-fetal-esophagus-in-the-first-second-and-third-trimesters-using-the-transverse-section-of-the-esophagus-in-the-area-behind-the-heart-as-a-reference-point
#14
Priti Venkatesh
OBJECTIVE: To describe and evaluate a simple technique of imaging the fetal esophagus, using the echogenic transverse section of the esophagus in the area behind the heart as a reference point, in all the 3 trimesters of pregnancy. METHOD: This was a prospective cross-sectional study of ultrasound imaging of the esophagus in 2 groups of patients: the first group comprised women at 18 to 30 weeks' gestation (208 fetuses); the second group comprised women at 11 to 14 weeks' gestation (102 fetuses)...
April 16, 2018: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/29663025/imaging-appearance-of-well-differentiated-liposarcomas-with-myxoid-stroma
#15
Yoav Morag, Corrie Yablon, Monica Kalume Brigido, Jon Jacobson, David Lucas
OBJECTIVE: Describe the imaging appearance of well-differentiated liposarcoma with myxoid stroma (WDLMS) and correlate with histopathology. MATERIALS AND METHODS: A keyword search of the institution medical records was performed from 1 January 2000 to 30 June 2017. The histopathology slides of cases identified in this fashion were then reviewed by a pathologist. Additional cases were prospectively collected from extramural referrals and tumor boards. Diagnostic imaging studies of pathologically proven cases of WDLMS were then reviewed in consensus and correlated with pathology...
April 16, 2018: Skeletal Radiology
https://www.readbyqxmd.com/read/29662719/the-importance-of-uterosacral-ligament-anatomy-in-overactive-bladder-a-preliminary-study
#16
Cevdet Adıgüzel, Esra Selver Saygılı Yılmaz, Sefa Arlıer, Sevtap Seyfettinoğlu, Gökhan Söker, Gülsüm Uysal, Oğuz Yücel, Akın Sivaslıoğlu
Objective: To evaluate whether uterosacral ligament (USL) thickness measured using magnetic resonance imaging (MRI) was associated with overactive bladder (OAB) in otherwise healthy women. Materials and Methods: The study comprised 27 women with OAB and 27 healthy women (control group) who were followed up at the Obstetrics and Gynecology Department of a tertiary referral center. All subjects were evaluated using pelvic MRI to determine the transverse USL thickness...
March 2018: Turkish Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29662718/is-the-measurement-of-the-size-of-uterine-lesions-with-positron-emission-tomography-consistent-in-pre-and-postmenopausal-periods-in-endometrioid-type-endometrial-cancer
#17
Varol Gülseren, Mustafa Kocaer, Özgü Çelikkol Güngördük, İsa Aykut Özdemir, Muzaffer Sancı, Kemal Güngördük
Objective: We aimed to investigate the correlation of the size and volume of uterine tumors obtained using positron emission tomography/computed tomography (PET/CT) and pathology specimens in patients with endometrioid-type endometrial cancer (EEC) in the premenopausal period, and to compare the results with those of postmenopausal women. In the premenopausal period, the endometrium uses more glucose than in the postmenopausal period. Therefore, the measurement of uterine tumor size using PET/CT in the premenopausal period may normally be different...
March 2018: Turkish Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29662714/post-cesarean-scar-endometriosis
#18
Doğan Yıldırım, Cihad Tatar, Ozan Doğan, Adnan Hut, Turgut Dönmez, Muzaffer Akıncı, Mehmet Toptaş, Rahime Nida Bayık
Objective: Endometriosis is seen in women during their reproductive period, where stromal tissue and functional endometrial glands of the uterus are observed outside the uterine cavity. In this study, we aimed to identify the clinical characteristics of our patients who underwent surgery with scar endometriosis and to discuss the surgical results in light of the literature. Materials and Methods: A total of 24 patients who underwent surgery and diagnosed as having endometriosis as the result of a pathologic examination were retrospectively evaluated...
March 2018: Turkish Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29661945/cigarette-smoking-and-incident-heart-failure-insights-from-the-jackson-heart-study
#19
Daisuke Kamimura, Loretta R Cain, Robert J Mentz, Wendy B White, Michael J Blaha, Andrew P DeFilippis, Ervin R Fox, Carlos J Rodriguez, Rachel J Keith, Emelia J Benjamin, Javed Butler, Aruni Bhatnagar, Rose M Robertson, Michael D Winniford, Adolfo Correa, Michael E Hall
Background -Cigarette smoking has been linked with several factors associated with cardiac dysfunction. We hypothesized that cigarette smoking is associated with left ventricular (LV) structure and function, and incident heart failure (HF) hospitalization. Methods -We investigated 4129 (never smoker n=2884, current smoker n=503, and former smoker n=742) black participants (mean age, 54 years; 63% women) without a history of HF or coronary heart disease at baseline in the Jackson Heart Study. We examined the relationships between cigarette smoking and LV structure and function by using cardiac magnetic resonance imaging among 1092 participants, cigarette smoking and brain natriuretic peptide levels among 3325 participants, and incident HF hospitalization among 3633 participants with complete data...
April 16, 2018: Circulation
https://www.readbyqxmd.com/read/29660916/comparison-of-strain-and-acoustic-radiation-force-impulse-elastography-of-breast-lesions-by-qualitative-evaluation
#20
Qing Zhao, Xiao-Lei Wang, Jia-Wei Sun, Zhao-Peng Jiang, Lin Tao, Xian-Li Zhou
OBJECTIVES: To compare the diagnostic performance of conventional strain elastography (CSE) and acoustic radiation force impulse (ARFI) induced SE for qualitative assessment of breast lesions and evaluate the additional value of the two techniques combined with Breast Imaging Reporting and Data System (BI-RADS) respectively for the differentiation of benign and malignant breast lesions. METHODS: In a cohort of 110 women, the conventional ultrasound (US) features and the elasticity scores of CSE and ARFI induced SE were recorded...
April 13, 2018: Clinical Hemorheology and Microcirculation
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