keyword
MENU ▼
Read by QxMD icon Read
search

Anatomy ct

keyword
https://www.readbyqxmd.com/read/29340238/a-revised-cranial-description-of-massospondylus-carinatus-owen-dinosauria-sauropodomorpha-based-on-computed-tomographic-scans-and-a-review-of-cranial-characters-for-basal-sauropodomorpha
#1
Kimberley E J Chapelle, Jonah N Choiniere
Massospondylus carinatus is a basal sauropodomorph dinosaur from the early Jurassic Elliot Formation of South Africa. It is one of the best-represented fossil dinosaur taxa, known from hundreds of specimens including at least 13 complete or nearly complete skulls. Surprisingly, the internal cranial anatomy of M. carinatus has never been described using computed tomography (CT) methods. Using CT scans and 3D digital representations, we digitally reconstruct the bones of the facial skeleton, braincase, and palate of a complete, undistorted cranium of M...
2018: PeerJ
https://www.readbyqxmd.com/read/29339193/a-pilot-study-on-the-biomechanical-assessment-of-obstructive-sleep-apnea-pre-and-post-bariatric-surgery
#2
Ahmed M Al-Jumaily, Sherif Ashaat, Bryn Martin, Rachael Pohle-Krauza, Matthew Krauza, Adrian Dan, John Zografakis
Obesity is a major risk factor for obstructive sleep apnea patients. In obese patients the severity of this risk can be reduced by bariatric surgery. This pilot study investigates the perioperative effects of bariatric surgery on obstructive sleep apnea and on the physical and biomechanical characteristics of the upper airway. Polysomnography and computer tomography data for 10 morbid obese patients promoted for bariatric surgery were conducted before surgery and at 6 and 12 months postoperatively for assessment of the oropharyngeal anatomy, and subsequent three-dimensional modelling of the airway...
January 12, 2018: Respiratory Physiology & Neurobiology
https://www.readbyqxmd.com/read/29338299/mitral-valve-replacement-via-a-left-thoracotomy-in-dextrocardia-and-situs-solitus
#3
María García Vieites, María Jose Martinez-Sapiña Llanas, Marcos Gómez Zincke, Beatriz Bouzas Zubeldía, Victor Bautista-Hernandez
Dextrocardia with situs solitus and severe mitral regurgitation is a rare clinical presentation which posse a surgical challenge and requires specific preoperative planning. A 54-year-old women with this anatomy, multiple thoracic procedures, and severe mitral valve regurgitation underwent successful mitral valve replacement with a 27-mm mechanical prosthesis through a left thoracotomy under ventricular fibrillation, on the basis of computed tomography findings. We emphasize the importance of preoperative planning and a surgical approach through a left thoracotomy and under ventricular fibrillation...
January 1, 2018: Asian Cardiovascular & Thoracic Annals
https://www.readbyqxmd.com/read/29333471/sectional-anatomy-quiz-ii
#4
Rashid Hashmi
This mage-based series comprises of a quiz pertaining to the identification of salient and important anatomical structures and landmarks expected to be seen at a given level on the computed tomography (CT). The representative image is followed by a series of images showing the examples of different commonly encountered pathological entities that can be seen at this level in a routine clinical practice. Readers are encouraged to identify the highlighted anatomical structures and landmarks in all the images and appreciate the alterations in the appearance of the normal structures resulting from the presence of a pathology...
2018: Asia Oceania Journal of Nuclear Medicine & Biology
https://www.readbyqxmd.com/read/29332169/measuring-cochlear-duct-length-in-asian-population-worth-giving-a-thought
#5
Mohnish Grover, Shitanshu Sharma, Shashank Nath Singh, Tanmaya Kataria, Rajendra Singh Lakhawat, Man Prakash Sharma
INTRODUCTION: The anatomy of the cochlea forms the basis for a successful cochlear implantation. Cochlear duct length (CDL) is defined as the length of the scala media as measured from the middle of the round window to helicotrema. Preoperative measurement of CDL is particularly important when precise intracochlear electrode array placement is desired. It can be done both histologically and radiologically. Preoperative high-resolution computed tomography (HRCT) scan which forms an integral part of cochlear implant workup is a useful tool to calculate CDL using 3D reconstructions...
January 13, 2018: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29331884/true-left-sided-gallbladder-a-case-report-and-comparison-with-the-literature-for-the-different-techniques-of-laparoscopic-cholecystectomy-for-such-anomalies
#6
Tamer Saafan, James Yi Hu, Ahmed-Emad Mahfouz, Abdelrahman Abdelaal
INTRODUCTION: True left-sided gallbladder (LSG) is a rare finding that may present with symptoms similar to those of a normally positioned gallbladder. Moreover, it may be missed by preoperative imaging studies such as ultrasound, computed tomography (CT), magnetic resonance imaging (MRI), or endoscopic ultrasound. True left-sided gallbladder is a surgical challenge and surgical technique may need to be modified for the completion of laparoscopic cholecystectomy. PRESENTATION OF CASE: In this case report, we present a case of true left-sided gallbladder that produced right-sided abdominal symptoms...
December 27, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29330950/comparative-anatomy-of-bat-jaw-musculature-via-diffusible-iodine-based-contrast-enhanced-computed-tomography
#7
Sharlene E Santana
Noctilionoid bats exhibit an extraordinary array of cranial specializations that match diverse diets, including variation in jaw musculature physiological cross-sectional areas (PCSA), lever arms, and relative contribution to bite force. Although previous research in this group has linked variation in skull shape and muscle mechanics to biting performance, there are still important gaps about the anatomical underpinnings of noctilionoid dietary adaptations, including the degree of compartmentalization of the jaw musculature, and whether and how muscle attachment sites have evolved across noctilionoid species that specialize on derived diets...
February 2018: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/29325356/-the-role-and-significance-of-digital-reconstruction-technique-in-liver-segments-based-on-portal-vein-structure
#8
X J Zhou, Q Dong, C Z Zhu, X Chen, B Wei, Y H Duan, J Zhao, X W Hao, H Zhang, P Nie, B Hu, W J Xu, R W Shen, Z H Chen, K R Dong, Y Z Bai, Q Shu, W J Luo, F Gao, N Xia, Q Y Yu
Objective: To study the segment of liver according to the large amount of three-dimensional(3D) reconstructive images of normal human livers and the vascular system, and to recognize the basic functional liver unit based on the anatomic features of the intrahepatic portal veins. Methods: The enhanced CT primitive DICOM files of 1 260 normal human livers from different age groups who treated from October 2013 to February 2017 provided by 16 hospitals were analyzed using the computer-aided surgery system.The 3D liver and liver vascular system were reconstructed, and the digital liver 3D model was established...
January 1, 2018: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/29322292/bilateral-symmetrical-comparison-of-the-proximal-femur-using-3d-ct-models
#9
Filip C Dolatowski, Max J Temmesfeld, Claude Pierre-Jerome, Arne Borthne, Sigurd Erik Hoelsbrekken
PURPOSE: Superimposed three-dimensional (3D)-models obtained from CT-images have been used to evaluate displacement of femoral neck fractures, but this method assumes symmetrical anatomy of normal femurs. The present study aimed to compare the spatial orientation of the left and right proximal femur, thus establishing if 3D models can be used as a reference standard for the evaluation of fracture displacement. METHODS: We generated 3D-CT-models of 20 patients with no skeletal pathology of the proximal femurs...
January 10, 2018: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/29320328/twenty-five-diagnoses-on-midline-images-of-the-brain-from-fetus-to-child-to-adult
#10
Asim F Choudhri, Harris L Cohen, Adeel Siddiqui, Vijay Pande, Ari M Blitz
Midsagittal images of the brain provide a wealth of anatomic information and may show abnormalities that are pathognomonic for particular diagnoses. Using an anatomy-based approach, the authors identify pertinent anatomic structures to serve as a checklist when evaluating these structures. Subregions evaluated include the corpus callosum, pituitary gland and sellar region, pineal gland and pineal region, brainstem, and cerebellum. The authors present 25 conditions with characteristic identifiable abnormalities at midsagittal imaging...
January 2018: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29319638/anomalous-sphenoid-diploe-vein-case-report-highlighting-the-value-of-careful-ct-evaluation-prior-to-decompression-surgery
#11
Michael Rafaelof, Hamzah Mustak, Daniel B Rootman
Lateral bony decompression may offer several biomechanical advantages and has become a commonly used surgical approach. Preoperative imaging plays a key role in surgical planning by providing information about the locoregional anatomy. The marrow space of the greater wing of the sphenoid is a focal point of the decompression surgery based on the volume that it occupies. Several vessels pass through the sphenoid bone, but most are small caliber vessels. The authors describe a case of an uncommon anatomical variant of the cranial diploic venous system in which the anterior transverse diploic vessel traverses the marrow space of the sphenoid...
January 9, 2018: Ophthalmic Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29318414/accuracy-of-pedicle-screw-insertion-by-airo%C3%A2-intraoperative-ct-in-complex-spinal-deformity-assessed-by-a-new-classification-based-on-technical-complexity-of-screw-insertion
#12
S Rajasekaran, Manindra Bhushan, Siddharth Aiyer, Rishi Kanna, Ajoy Prasad Shetty
PURPOSE: To develop a classification based on the technical complexity encountered during pedicle screw insertion and to evaluate the performance of AIRO® CT navigation system based on this classification, in the clinical scenario of complex spinal deformity. MATERIALS AND METHODS: 31 complex spinal deformity correction surgeries were prospectively analyzed for performance of AIRO® mobile CT-based navigation system. Pedicles were classified according to complexity of insertion into five types...
January 9, 2018: European Spine Journal
https://www.readbyqxmd.com/read/29312871/patient-specific-three-dimensional-printing-for-pre-surgical-planning-in-hepatocellular-carcinoma-treatment
#13
Elizabeth Perica, Zhonghua Sun
Background: Recently, three-dimensional (3D) printing has shown great interest in medicine, and 3D printed models may be rendered as part of the pre-surgical planning process in order to better understand the complexities of an individual's anatomy. The aim of this study is to investigate the feasibility of utilising 3D printed liver models as clinical tools in pre-operative planning for resectable hepatocellular carcinoma (HCC) lesions. Methods: High-resolution contrast-enhanced computed tomography (CT) images were acquired and utilized to generate a patient-specific 3D printed liver model...
December 2017: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/29310821/sestamibi-spect-ct-versus-spect-only-for-preoperative-localization-in-primary-hyperparathyroidism-a-single-institution-8-year-analysis
#14
Kelly L McCoy, Anish G Ghodadra, Trilochan G Hiremath, Angela Albarano, Judith M Joyce, Linwah Yip, Sally E Carty, Ashok Muthukrishnan
BACKGROUND: Primary hyperparathyroidism is caused by single gland disease in 85% of cases and by multiglandular disease in 15%. Our aim was to discover if the addition of computed tomography acquisition/fusion on a hybrid scanner to traditional dual-phase single-photon emission tomography improves localization accuracy. METHODS: A prospective database was queried for the perioperative data of patients with sporadic primary hyperparathyroidism who had initial exploration from 2006-2014 with ≥6 month follow-up to define anatomy...
January 5, 2018: Surgery
https://www.readbyqxmd.com/read/29310150/noninvasive-vascular-assessment-of-lower-extremity-wounds-in-diabetics-are-we-able-to-predict-perfusion-deficits
#15
Iram Naz, Elliot Walters, Cameron M Akbari, Christopher E Attinger, Paul J Kim
Vascular assessment of the lower extremity is a critical step in any patient presenting with lower extremity chronic wounds to predict the likelihood of healing and risk of amputation. This concept is vital in patients with diabetes due to their complex vascular anatomy and disease distribution. Three arteries supply the six angiosomes of the lower extremity (i.e., three-dimensional blocks of tissue fed by a "source" artery in the foot and ankle). In diabetic patients, assessment of adequate blood flow to the lower extremities is complicated by the presence of arterial calcification, associated neuropathy, and inflammation...
October 12, 2017: Surgical Technology International
https://www.readbyqxmd.com/read/29309974/three-dimensional-printed-skull-base-simulation-for-transnasal-endoscopic-surgical-training
#16
Jia-Ping Zheng, Chu-Zhong Li, Guo-Qiang Chen, Gui-Dong Song, Ya-Zhuo Zhang
OBJECTIVE: Transnasal endoscopic skull base surgery (SBS) presents a great challenge for inexperienced neurosurgeons due to the complicated anatomic structures, 2-dimensional endoscopic view, limited operative field, and required skills. We designed a personalized multi-material and multi-color three-dimensional (3D)-printed SBS simulation to reproduce the complex anatomy of the skull base. The fidelity and feasibility for anatomical education and surgical training were assessed. METHODS: Two-dimensional computer tomography and magnetic resonance images were collected from a 42-year-old healthy male volunteer...
January 5, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29305732/anatomy-of-the-retro-oesophageal-major-aortopulmonary-collateral-arteries-in-patients-with-pulmonary-atresia-with-ventricular-septal-defect-results-from-preoperative-cta
#17
Qianjun Jia, Jianzheng Cen, Jinglei Li, Jian Zhuang, Hui Liu, Qun Zhang, Xiaoqing Liu, Meiping Huang, Changhong Liang
OBJECTIVES: To assess the frequency and anatomy of retro-oesophageal aortopulmonary collateral arteries (REMs) in patients with pulmonary atresia with ventricular septal defect and major aortopulmonary collateral arteries (PA-VSD-MAPCAs). METHODS: A total of 130 consecutive PA-VSD-MAPCA patients with preoperative CT angiography (CTA) data who underwent cardiac surgery were included. A detailed analysis of MAPCA anatomy was performed using CTA. RESULTS: A REM was identified in 82/130 included patients (63 %)...
January 5, 2018: European Radiology
https://www.readbyqxmd.com/read/29302781/a-new-minimally-invasive-surgical-technique-for-medial-retinaculum-repair-following-traumatic-patellar-dislocation
#18
Haim Shtarker, Michael Assaf, Marshall N Deltoff
A new surgical method is introduced offering a less invasive approach to reattach the medial retinaculum following acute patellar dislocation. This retrospective analysis comprised 12 cases of medial retinacular repair in 10 patients. The surgical technique achieved reinforced reattachment of the torn region of the medial retinaculum for improved patellar support and stabilization. During follow-up, no recurrent patellar dislocations occurred, except where one patient reported a subjective feeling of patellar dislocation...
January 4, 2018: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/29299627/3d-vascular-anatomy-of-the-presacral-space-impact-of-age-and-adiposity
#19
Alexander A Berger, Steven Abramowitch, Pamela A Moalli
INTRODUCTION AND HYPOTHESIS: Defining patient characteristics that alter vascular anatomy at the sacrum is critical for avoiding life-threatening bleeding at the time of sacrocolpopexy. We tested the hypothesis that in thinner/older women, the bifurcations of the aorta and inferior vena cava (IVC) are lower relative to S1 resulting in less space accessible for suture/mesh placement, placing this group at increased risk of major vascular injury. METHODS: In a retrospective cross-sectional study, CT scans were used to make 2D measurements and a 3D model of the aorta/IVC, intervertebral disc space, and bony anatomy using segmentation and modeling software...
January 3, 2018: International Urogynecology Journal
https://www.readbyqxmd.com/read/29299101/rib-head-dislocation-causing-spinal-canal-stenosis-in-a-child-with-neurofibromatosis-type-1
#20
Alan M Chen, Jeffrey B Neustadt, Jennifer Neville Kucera
A 10-year-old female with neurofibromatosis type 1 and severe dystrophic scoliosis presented with a two-month history of difficulty ambulating due to low back pain. The patient did not have any neurological symptoms. MRI of the thoracolumbar spine demonstrated subluxation of the right posterior tenth and eleventh ribs through their respective neural foramina, with mild mass effect on the thecal sac without abnormal cord signal or cord compression. Groups of neurofibromas were present along the right ribs and paravertebral soft tissues around these levels...
August 2017: Journal of Radiology Case Reports
keyword
keyword
33887
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"