CT gastrography, also known as CT enterography or CT gastroenterography, is a specialized imaging technique that uses computed tomography (CT) to obtain detailed images of the gastrointestinal (GI) tract, including the stomach, small intestine, and large intestine. This method is particularly useful for visualizing the bowel and assessing conditions such as inflammatory bowel disease (IBD), tumors, obstructions, and other abnormalities of the GI tract.
Pharmaceutical statistics is a specialized branch of statistics that focuses on the design, analysis, and interpretation of data related to pharmaceuticals and drug development. It plays a critical role throughout the entire lifecycle of a drug, from preclinical research to clinical trials and post-marketing surveillance. Here are some key aspects of pharmaceutical statistics: 1. **Clinical Trial Design**: Pharmaceutical statisticians help design clinical trials, determining factors such as sample size, randomization methods, and endpoint selection.
Corneal topography is a diagnostic imaging technique used to map the surface curvature and shape of the cornea, the clear front surface of the eye. This method provides a detailed, three-dimensional representation of the corneal surface's contour, which can help in diagnosing various ocular conditions.
As of my last knowledge update in October 2023, Diagnostic Health Corporation is not widely recognized, and specific details about the organization might not be readily available. It's possible that it could refer to a company involved in the healthcare or diagnostics sector, focusing on services related to medical imaging, laboratory testing, or related fields.
Iterative reconstruction is a computational technique used primarily in imaging technologies, particularly in computed tomography (CT), magnetic resonance imaging (MRI), and other modalities. The main goal of iterative reconstruction is to improve image quality while reducing the amount of radiation exposure and noise in the process. Here's how it generally works: 1. **Initial Image Estimation**: The process begins with an initial estimation of the image, which might be based on a simple reconstruction algorithm or prior knowledge about typical image features.
Life Image is a health technology company that focuses on the management and sharing of medical imaging data. It provides a platform that allows healthcare providers, patients, and researchers to access and share imaging studies such as X-rays, MRIs, and CT scans. The goal of Life Image is to improve patient care by facilitating interoperability and collaboration among different healthcare systems, thereby enabling more efficient diagnosis and treatment.
Medical animation is a specialized form of animation that visually represents complex biological processes, anatomical structures, and medical concepts. These animations are used primarily in the fields of medicine, healthcare, and education to convey information in a more engaging and understandable way than traditional methods like diagrams or text. Key aspects of medical animation include: 1. **Educational Purposes**: Medical animations are often used in medical education to help students and professionals understand human anatomy, physiological processes, and the mechanisms of diseases.
MicroDicom is a DICOM (Digital Imaging and Communications in Medicine) viewer software designed for viewing and managing medical images. It is particularly acclaimed for its user-friendly interface and robust functionality. Some of its key features include: 1. **DICOM Support**: MicroDicom can open and view DICOM files, which are commonly used in medical imaging such as radiology, ultrasound, and other imaging modalities.
A photographic plate is an early medium used for capturing images, primarily in photography before the advent of modern film. It consists of a glass or metal plate coated with a light-sensitive material, usually a silver halide emulsion. When exposed to light, the emulsion undergoes a chemical change that creates a latent image, which can then be developed into a visible photograph through various chemical processing techniques.
RTI-55, also known as RTI-55-356, is a synthetic cannabinoid that is part of a class of compounds designed to mimic the effects of tetrahydrocannabinol (THC), the main psychoactive component of cannabis. These synthetic cannabinoids are often used in research and sometimes found in illicit drug markets labeled as "spice" or "K2.
The cohort effect refers to the differences in attitudes, behaviors, and experiences that arise from individuals being part of a specific group that experiences particular historical, social, or cultural events at the same time. These groups, known as cohorts, can be defined by various factors such as age, year of birth, or a specific life event that they collectively experience.
The Spinal Cord Toolbox (SCT) is an open-source software package designed for the processing and analysis of spinal cord MRI data. It is particularly useful for researchers and clinicians working in the fields of neuroimaging and spinal cord studies. The toolkit provides various tools and algorithms for tasks such as spinal cord segmentation, registration, and visualization, enabling more accurate assessment of spinal cord structure and function.
The Number Needed to Treat (NNT) is a statistical measure used in healthcare to estimate the effectiveness of a treatment. It indicates the number of patients that need to be treated with a particular intervention in order for one patient to benefit from that treatment compared to a control group (usually receiving a placebo or standard care). The NNT is calculated from the absolute risk reduction (ARR), which is the difference in the event rate (e.g.
Viatronix is a company that focuses on developing advanced imaging software and solutions for the medical field. Their products typically emphasize the integration of imaging technologies such as CT (computed tomography), MRI (magnetic resonance imaging), and ultrasound. Viatronix aims to enhance the way medical professionals visualize and analyze imaging data, ultimately improving diagnostic accuracy and patient outcomes.
Lead time bias is a phenomenon that occurs in medical research and public health when evaluating the effectiveness of screening tests or early detection methods. It refers to the apparent prolongation of survival time due to the earlier diagnosis of a disease, rather than a true extension of life. Here's how it works: 1. **Early Detection**: When a disease like cancer is detected earlier through screening, patients often have a longer time between diagnosis and death, simply because the diagnosis is made sooner.
In statistics, "matching" refers to a technique used in observational studies and experiments to control for confounding variables when estimating causal effects. The main goal of matching is to create comparable groups that differ only in the treatment or intervention of interest, thus reducing bias in the estimation of treatment effects. There are several common forms of matching: 1. **Propensity Score Matching (PSM):** This is one of the most widely used methods.
A smart thermometer is a digital device that measures body temperature and offers additional features beyond traditional thermometers. These devices often connect to smartphones or tablets via Bluetooth or Wi-Fi, allowing users to track temperature readings over time, receive alerts, and share data with healthcare providers. Key features of smart thermometers may include: 1. **Digital Display**: They typically have an easy-to-read digital display that shows temperature readings quickly and accurately.
Post hoc analysis refers to the examination of data after an experiment or study has been conducted, particularly when looking for patterns or relationships that were not specified in advance. The term "post hoc" is derived from the Latin phrase "post hoc, ergo propter hoc," which means "after this, therefore because of this.
Predictive informatics refers to the use of data analysis techniques, algorithms, and statistical models to forecast outcomes and trends based on historical data. It combines elements of information science, statistics, machine learning, and data mining to extract insights and predict future events or behaviors. Key components of predictive informatics include: 1. **Data Collection and Management**: Gathering relevant datasets from various sources, which may include structured data (like databases) and unstructured data (like text and images).
Obstetric ultrasonography is a medical imaging technique that uses high-frequency sound waves to create images of the developing fetus, the uterus, and other structures during pregnancy. It is a non-invasive procedure that is widely used in obstetrics to monitor the health and development of the fetus, assess the condition of the pregnant person, and identify any potential complications.

Pinned article: Introduction to the OurBigBook Project

Welcome to the OurBigBook Project! Our goal is to create the perfect publishing platform for STEM subjects, and get university-level students to write the best free STEM tutorials ever.
Everyone is welcome to create an account and play with the site: ourbigbook.com/go/register. We belive that students themselves can write amazing tutorials, but teachers are welcome too. You can write about anything you want, it doesn't have to be STEM or even educational. Silly test content is very welcome and you won't be penalized in any way. Just keep it legal!
We have two killer features:
  1. topics: topics group articles by different users with the same title, e.g. here is the topic for the "Fundamental Theorem of Calculus" ourbigbook.com/go/topic/fundamental-theorem-of-calculus
    Articles of different users are sorted by upvote within each article page. This feature is a bit like:
    • a Wikipedia where each user can have their own version of each article
    • a Q&A website like Stack Overflow, where multiple people can give their views on a given topic, and the best ones are sorted by upvote. Except you don't need to wait for someone to ask first, and any topic goes, no matter how narrow or broad
    This feature makes it possible for readers to find better explanations of any topic created by other writers. And it allows writers to create an explanation in a place that readers might actually find it.
    Figure 1.
    Screenshot of the "Derivative" topic page
    . View it live at: ourbigbook.com/go/topic/derivative
  2. local editing: you can store all your personal knowledge base content locally in a plaintext markup format that can be edited locally and published either:
    This way you can be sure that even if OurBigBook.com were to go down one day (which we have no plans to do as it is quite cheap to host!), your content will still be perfectly readable as a static site.
    Figure 2.
    You can publish local OurBigBook lightweight markup files to either https://OurBigBook.com or as a static website
    .
    Figure 3.
    Visual Studio Code extension installation
    .
    Figure 4.
    Visual Studio Code extension tree navigation
    .
    Figure 5.
    Web editor
    . You can also edit articles on the Web editor without installing anything locally.
    Video 3.
    Edit locally and publish demo
    . Source. This shows editing OurBigBook Markup and publishing it using the Visual Studio Code extension.
    Video 4.
    OurBigBook Visual Studio Code extension editing and navigation demo
    . Source.
  3. https://raw.githubusercontent.com/ourbigbook/ourbigbook-media/master/feature/x/hilbert-space-arrow.png
  4. Infinitely deep tables of contents:
    Figure 6.
    Dynamic article tree with infinitely deep table of contents
    .
    Descendant pages can also show up as toplevel e.g.: ourbigbook.com/cirosantilli/chordate-subclade
All our software is open source and hosted at: github.com/ourbigbook/ourbigbook
Further documentation can be found at: docs.ourbigbook.com
Feel free to reach our to us for any help or suggestions: docs.ourbigbook.com/#contact