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https://www.readbyqxmd.com/read/28549029/a-contemporary-approach-to-reoperative-aortic-valve-surgery-when-is-less-more
#1
Deane E Smith, Michael S Koeckert, Patrick F Vining, Elias A Zias, Eugene A Grossi, Aubrey C Galloway
OBJECTIVE: Although the benefits of minimally invasive valvular surgery are well established, the applicability of extending these techniques to reoperative aortic valve surgery is unknown. We evaluated our experience with a minimally invasive approach to this patient population. METHODS: From January 2010 to September 2015, 21 patients underwent reoperative isolated aortic valve replacement via a minimally invasive approach by a single surgeon. All patients had preoperative evaluation with computerized tomography and coronary catheterization...
May 25, 2017: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
https://www.readbyqxmd.com/read/28543704/comparison-of-2-vs-3-dimensional-fracture-mapping-strategies-for-3-dimensional-computerized-tomography-reconstructions-of-scapula-neck-body-fractures
#2
Anthony J Dugarte, Luisa Tkany, Lisa K Schroder, Andreas Petersik, Peter A Cole
Fracture mapping has been used in the understanding of injury patterns in different bones. To our knowledge, there are no applications of this technique using three-dimensional (3D) morphologic fracture characteristics. Previously, scapula fractures were mapped by transferring information from 3D computed tomography to a two-dimensional (2D) template. Cole et al. determined that 3D Computerized Tomography (CT) scans were more reliable compared to plain radiographs in terms of scapular angulation, translation, and glenopolar angle measurements...
May 19, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28541636/survival-outcomes-after-extensive-cytoreductive-surgery-and-selective-neoadjuvant-chemotherapy-according-to-institutional-criteria-in-bulky-stage-iiic-and-iv-epithelial-ovarian-cancer
#3
Myong Cheol Lim, Heong Jong Yoo, Yong Jung Song, Sang Soo Seo, Sokbom Kang, Sun Ho Kim, Chong Woo Yoo, Sang Yoon Park
OBJECTIVE: To investigate the survival outcomes in patients with bulky stage IIIC and IV ovarian cancer, treated by primary debulking surgery (PDS) and selective use of neoadjuvant chemotherapy (NAC) according to institutional criteria. METHODS: Medical records for advanced ovarian cancer patients who were treated at National Cancer Center (NCC) between December 2000 and March 2009 were retrospectively reviewed in the comprehensive cancer center. Bulky stage IIIC and IV ovarian cancer cases were included...
July 2017: Journal of Gynecologic Oncology
https://www.readbyqxmd.com/read/28540906/an-overlap-of-granulomatosis-with-polyangiitis-and-eosinophilic-granulomatosis-with-polyangiitis
#4
Sujit Surendran, Chandramohan Gundappa, Arun Gandhi, Anila Abraham Kurien, Edwin Fernando
We present a case report of overlap of granulomatosis with polyangiitis (GPA; formerly known as Wegener's granulomatosis) and eosinophilic granulomatosis with polyangiitis (EGPA; formerly known as Churg-Strauss syndrome). We report a 45-year-old female who presented with rapidly progressive renal failure associated with fever, polyarthralgia, and respiratory symptoms with cytoplasmic antineutrophilic cytoplasmic antibody (ANCA) and proteinase (PR-3) antigen positivity. Computerized tomography scan of the chest showed diffuse alveolar hemorrhage with renal biopsy revealing pauci-immune necrotizing crescentic glomerulonephritis with intense eosinophilic infiltration suggestive of eosinophilic GPA (EGPA)...
May 2017: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/28540054/primary-retroperitoneal-mature-cystic-teratoma-dermoid-cyst-in-a-51-year-old-male-case-report-and-historical-literature-review
#5
Andrew Tiu, Vinayak Sovani, Nasir Khan, Shveta Hooda
OBJECTIVES: Primary retroperitoneal mature cystic teratomas are exceedingly uncommon in males aged 50 years and above, and only seven cases have been reported in the literature so far. They usually occur in infants less than 6 months and young females. The aim of this article is to present a rare case of a 51-year-old male with a primary retroperitoneal mature cystic teratoma located in the right infrarenal area adherent to the psoas muscle and to discuss a historical literature review...
2017: SAGE open medical case reports
https://www.readbyqxmd.com/read/28538077/monobloc-frontofacial-or-le-fort-iii-distraction-osteogenesis-in-syndromic-craniosynostosis-three-dimensional-evaluation-of-treatment-outcome-and-the-need-for-central-distraction
#6
Ching-Hsuan Hu, Chieh-Tsai Wu, Ellen Wen-Ching Ko, Philip Kuo-Ting Chen
BACKGROUND: The objectives of this study were to investigate the treatment effect, morphology, and volumetric outcomes of monobloc frontofacial or Le Fort III distraction osteogenesis in syndromic craniosynostosis by 3-dimensional evaluation. MATERIALS AND METHODS: Nine consecutive patients underwent monobloc frontofacial or Le Fort III distraction during 2003 to 2012 were included and evaluated. The patient's evaluation is a minimum of a 4-year follow-up. Pretreatment, post-treatment advancement, and relapse were quantified...
May 19, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28538076/regeneration-of-cystic-bone-cavities-and-bone-defects-with-bioactive-glass-s53p4-in-the-upper-and-lower-jaws
#7
Patricia Stoor, Satu Apajalahti, Risto Kontio
Cysts and tumors are common lesions in the jaws. To be able to retain a good volume of the alveolar ridge during healing as well as strengthening the angle and body of the mandible and provide an instant improved support for adjacent teeth, reliable long-term bone regeneration is needed. The purpose of this prospective study was to promote bone regeneration by filling bony defects in the upper or lower jaw with granules of the bioactive glass S53P4 (BAG), which have osteostimulative and antimicrobial properties...
May 19, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28537693/surgical-management-of-female-paraurethral-cyst-with-concomitant-stress-urinary-incontinence
#8
Tarik Yonguc, Ibrahim Halil Bozkurt, Salih Polat, Serkan Yarimoglu, Ismail Gulden, Volkan Sen, Suleyman Minareci
Paraurethral cysts are usually asymptomatic and frequently detected incidentally during routine pelvic examination however, patients can present with complaints of a palpable cyst or with lower urinary tract symptoms (LUTS) and also dyspareunia. In most cases, diagnosis can be made on physical examination but for more detailed evaluation and to differentiate from malign lesions ultrasonography (US), voiding cystourethrogram (VCUG), computerized tomography (CT), or magnetic resonance imaging (MRI) can also be used...
May 23, 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/28533642/hepatic-pseudolesion-in-svc-obstruction-99m-technetium-sulfur-colloid-scan-equivalent-of-quadrate-lobe-hot-spot-sign-on-computerized-tomography
#9
Reddy Ravikanth, Arun George, Babu Philip
An area of increased activity in segment IV of liver (quadrate lobe) on (99m)Tc-sulfur colloid (TSC) scans has been well documented in patients with superior vena cava obstruction. Similarly intense enhancement of the quadrate lobe in the arterial phase may be seen on computed tomography in patients of superior vena cava syndrome. We present this imaging finding in a case of malignant thymoma causing superior vena cava syndrome and discuss the physiological cause and importance of this sign.
April 2017: Indian Journal of Nuclear Medicine: IJNM: the Official Journal of the Society of Nuclear Medicine, India
https://www.readbyqxmd.com/read/28532015/effect-of-sintering-temperature-rise-from-870-to-920%C3%A2-c-on-physicomechanical-and-biological-quality-of-nano-hydroxyapatite-an-explorative-multi-phase-experimental-in-vitro-vivo-study
#10
Ahad Khoshzaban, Vahid Rakhshan, Farhood Najafi, Leila Aghajanpour, Seyed Jafar Hashemian, Saeed Heidari Keshel, Ikuya Watanabe, Alireza Valanezhad, Tahereh Sadat Jafarzadeh Kashi
Hydroxyapatite (HA) is a proper scaffold for bone repair, however, it is not of excellent mechanical properties. Most previous studies on the effect of temperature increases were in vitro and had assessed merely improvements of HA's physicomechanical quality. This in vitro/vivo study investigated the effect of temperature increases from 870 to 920°C on physicomechanical and biological quality of Nano-HA. Forty experimentally produced HA disks sintered at 870 to 920°C were prepared (n=20×2). Disks were subjected to Vickers microindentation test (1 disk from each group divided into 4 quarters), Fourier transform infrared spectroscopy (1 disk), X-ray diffraction (XRD) [1 disk together with non-sintered HA], field emission scanning electron microscopy (FSEM, 1 disk from each group together with non-sintered HA), cell seeding and SEM assessment (2 disks), MTT assay over 4 different time periods (16 quadrants of 4 disks from each group), 6 one-thirds of 2 disks from each group for immunocytochemical (ICC) assay, and 8 disks from each group [as well as non-sintered HA] for the animal study (implantation in 4 sockets in 8 rabbits [32 specimens], histomorphometry, and computerized tomography) over two time periods...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28531940/contusional-cerebellar-hemorrhage-related-to-placement-in-the-protrusion-position-after-atlantoaxial-fusion
#11
Yoshinari Miyaoka, Mikinobu Takeuchi, Norimitsu Wakao, Masahiro Aoyama, Kazuhiro Hongo, Masakazu Takayasu
BACKGROUND: Various complications after C1 lateral mass and C2 pedicle screw fusion surgery (C1LM-C2PSFS) have been reported. However, to our knowledge, this is the first report of contusional cerebellar hemorrhage caused by placement in the protrusion (chin-out) position after C1LM-2PSFS. CASE DESCRIPTION: An 81-year-old woman complaining of gait disturbance and clumsiness of both hands was diagnosed with cervical myelopathy with atlantoaxial subluxation. After we performed C1LM-C2PSFS, her neurologic deficits gradually improved, and there was no radiologic evidence of construct failure...
May 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28522740/initial-experience-with-volumetric-68-ga-psma-i-t-pet-ct-for-assessment-of-whole-body-tumor-burden-as-a-quantitative-imaging-biomarker-in-patients-with-prostate-cancer
#12
Sebastian Schmuck, Christoph A von Klot, Christoph Henkenberens, Jan M Sohns, Hans Christiansen, Hans-Jürgen Wester, Tobias L Ross, Frank M Bengel, Thorsten Derlin
A quantitative imaging biomarker is desirable to provide a comprehensive measure of whole-body tumor burden in patients with metastatic prostate cancer, and to standardize the evaluation of treatment-related changes. Therefore, we evaluated whether prostate specific membrane antigen (PSMA) ligand positron emission tomography/computed tomography (PET/CT) may be applied to provide PSMA-derived volumetric parameters for quantification of whole-body tumor burden. Methods: 101 patients who underwent a (68)Ga-PSMA I&T PET/CT because of increasing prostate specific antigen (PSA) levels after radical prostatectomy were included in this retrospective analysis...
May 18, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28515848/coronary-artery-disease-detection-limitations-of-stress-testing-in-left-ventricular-dysfunction
#13
REVIEW
Ritin Bomb, Senthil Kumar, Anand Chockalingam
Incidental diagnosis of left ventricular systolic dysfunction (LVD) is common in clinical practice. The prevalence of asymptomatic LVD (Ejection Fraction, EF < 50%) is 6.0% in men and 0.8% in women and is twice as common as symptomatic LVD. The timely and definitive exclusion of an ischemic etiology is central to optimizing care and reducing mortality in LVD. Advances in cardiovascular imaging provide many options for imaging of patients with left ventricular dysfunction. Clinician experience, patient endurance, imaging modality characteristics, cost and safety determine the choice of testing...
April 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/28515585/calcification-of-the-submandibular-gland-in-a-patient-with-chickenpox
#14
Cetin Celenk, Peruze Celenk
The pneumonia virus of chickenpox is now known to cause scattered calcified foci in the lungs, however to our knowledge, recent literature has not discussed calcification in the salivary glands. A 15-year-old boy consulted the department of radiology because of a swelling on the right side of the submandibular area. Radiological assessment included an ultrasonography and computerized tomography scan of the neck area, which demonstrated intraparenchymal amorph calcification, with approximately 13 mm diameter in the right submandibular gland...
January 2017: Indian Journal of Radiology & Imaging
https://www.readbyqxmd.com/read/28515582/evaluation-of-mr-perfusion-abnormalities-in-organophosphorus-poisoning-and-its-correlation-with-spect
#15
K Uday Bhanu, Niranjan Khandelwal, Sameer Vyas, Paramjeet Singh, Anuj Prabhakar, B R Mittal, Ashish Bhalla
AIM: Acute organophosphate (OP) pesticide poisoning causes substantial morbidity and mortality worldwide. Many imaging modalities, such as computerized tomography (CT), magnetic resonance imaging (MRI), and single photon emission computed tomography (SPECT) of the brain, have been used for quantitative assessment of the acute brain insult caused by acute OP poisoning. Perfusion defects on SPECT in acutely poisoned patients with OPs have been described, however, MR perfusion abnormalities have not been described in the literature...
January 2017: Indian Journal of Radiology & Imaging
https://www.readbyqxmd.com/read/28514755/a-novel-serum-based-biomarker-panel-has-complementary-ability-to-preclude-presence-of-early-lung-cancer-for-low-dose-ct-ldct
#16
Xiaobing Wang, Xiuyi Zhi, Zhaogang Yang, Haimei Tian, Yanfen Li, Mo Li, Wenya Zhao, Chao Zhang, Teng Wang, Jing Liu, Di Shen, Cuining Zheng, Dan Zhao, Sheng Yang, Jun Qi, Hongwu Xin, Alexander Stojadinovic, Itzhak Avital, L James Lee, Jianyu Rao, Wei Zhang
Low Dosage Computerized Tomography (LDCT) has been shown to improve early detection of lung cancer and mortality rates in high-risk individuals, which was, however, limited by specifically coverage for heavy smokers and high rates of false positivity. Here, we aim to investigate a novel biomarker for early detection of lung cancer, and further extend to concentrate high-risk subjects for increasing specificity and coverage of LDCT. We performed retrospective blinded evaluation of lung cancer and healthy controls in training and validation cohorts...
April 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28514378/-comparative-analysis-of-static-scintigraphy-and-computerized-tomography-in-assessment-of-remnant-liver-volume-after-advanced-hepatic-resection
#17
P P Kim, L V Bondar, R B Alikhanov, M G Efanov, N S Starostina, O V Melekhina, Yu V Kulezneva
AIM: To perform a comparative analysis of computerized tomographic volumetry and scintigraphic liver volumetry in assessment of remnant liver volume after advanced hepatic resection. MATERIAL AND METHODS: Static hepatobiliary scintigraphy and CT volumetry were performed in 45 patients with various liver tumors who underwent advanced hepatectomies (more than three segments). RESULTS: There were no any significant differences in volumetric parameters obtained by CT and scintigraphic volumetry...
2017: Khirurgiia
https://www.readbyqxmd.com/read/28512004/contribution-of-high-resolution-peripheral-quantitative-ct-to-the-management-of-bone-and-joint-diseases
#18
Eric Lespessailles, Nada Ibrahim-Nasser, Hechmi Toumi, Roland Chapurlat
Many imaging modalities have been described to diagnose and monitor osteoporosis (OP), osteoarthritis and inflammatory rheumatic diseases. Over the last ten years, High Resolution peripheral Quantitative Computerized Tomography (HR-pQCT) was shown to be a precise and non invasive technique to study bone and joint diseases in clinical research. It allows the study of both cortical and trabecular bone microarchitecture at the distal tibia and radius, and further applications have been developed such as the study of mechanical properties by the finite element analysis...
May 13, 2017: Joint, Bone, Spine: Revue du Rhumatisme
https://www.readbyqxmd.com/read/28508191/investigations-of-severity-level-measurements-for-diabetic-macular-oedema-using-machine-learning-algorithms
#19
S Murugeswari, R Sukanesh
BACKGROUND: The macula is an important part of the human visual system and is responsible for clear and colour vision. Macular oedema happens when fluid and protein deposit on or below the macula of the eye and cause the macula to thicken and swell. Normally, it occurs due to diabetes called diabetic macular oedema. Diabetic macular oedema (DME) is one of the main causes of visual impairment in patients. AIM: The aims of the present study are to detect and localize abnormalities in blood vessels with respect to macula in order to prevent vision loss for the diabetic patients...
May 15, 2017: Irish Journal of Medical Science
https://www.readbyqxmd.com/read/28507974/a-rare-presentation-of-cervical-spine-osteochondroma
#20
Vijay Shankar, Kumar Amerendra Singh, Simanchal P Mohanty
INTRODUCTION: Cervical spine osteochondromas are rare tumors that usually involve the posterior spinal elements. Osteochondromas of the cervical spine presenting anteriorly as a mass over the supraclavicular region has not been reported in the literature. CASE REPORT: A 12-year-old boy presented with right sided supraclavicular swelling. Plain radiographs revealed a bony mass. Computerized tomography (CT) and magnetic resonance imaging scans of the cervical region showed a bony mass arising from pedicle and encroaching onto lamina of C6 vertebra...
November 2016: Journal of Orthopaedic Case Reports
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