Update on Guidelines for the Management of Cancer‐Associated Thrombosis
What Are The Risk Factors For Deep Vein Thrombosis?
Several factors can increase a person's risk of deep vein thrombosis (DVT) development. Examples include injury to the veins, hormonal changes, reduced blood flow, certain health conditions, and more.
DVT is a blood clot that occurs in a vein deep within the body, typically in the leg. DVT risk factors may be transient, or temporary, such as pregnancy or recovering from surgery. They can also be persistent, such as cancer or living with a chronic health condition.
Knowing a person's risk factor for DVT can help healthcare professionals identify and treat DVT faster if it occurs. It can also allow a person to take steps to help reduce their risk.
This article reviews the various risk factors for DVT and discusses prevention tips, when to contact a doctor, and more.
Injury to veins can increase the risk of a person developing DVT. Some causes of vein injury include:
Hormone changes can influence the risk a person has for developing DVT. In particular, an increase in estrogen can increase a person's risk of DVT.
Some causes of estrogen increase include:
Reduced blood flow can increase the risk of DVT development.
Inactivity may cause reduced blood flow in several people. Factors that can result in inactivity and increase the risk include:
Wearing a cast following an injury may also reduce blood flow.
Certain medical conditions and infections can increase the risk of DVT.
Some chronic conditions that may increase a person's risk include:
Infections such as sepsis and COVID-19 may also increase a person's risk of DVT.
Other factors can contribute to DVT risk. They include:
A person can inherit some risk factors for DVT.
The identified inherited clotting disorders that can increase the risk of DVT include:
Having a non-O blood group and a family history of DVT or pulmonary embolism increases the risk of DVT.
The exact number of people who develop DVT is unclear. Estimates suggest that about 900,000 people will develop venous thromboembolism — either DVT or a pulmonary embolism — each year in the United States.
Approximately 60,000–100,000 people will die due to venous thromboembolism each year.
Knowing the risk factors and taking steps to reduce these can help a person reduce the likelihood of developing DVT.
A person may be able to take steps to reduce the likelihood of developing DVT.
Steps a person can take to help reduce their risk include:
Wearing graduated compression stockings may also help reduce the risk of DVT. A doctor can advise on what class of compression stockings a person should wear and for how long they should wear them.
A person should contact a doctor if they develop symptoms that could indicate DVT. These include:
A person can also contact their doctor for advice if they have concerns about the risk factors for DVT. Their doctor can assess their risk and advise on steps they can take to reduce the likelihood of developing the condition.
The doctor can also advise on suitable treatments for DVT. Treating DVT can help reduce the risk of pulmonary embolism, which can be fatal in some cases.
Learn more about the symptoms of DVT.
Deep vein thrombosis (DVT) has several potential risk factors. They include injury to veins, chronic health conditions, infections, surgery, and trauma. Other factors that may increase the likelihood of developing DVT include hormone changes, obesity, smoking, and being over the age of 40 years.
A person can contact their doctor for advice if they have concerns about the risk factors for DVT. The doctor can recommend lifestyle changes to help manage the risk. In some cases, they may also recommend medications such as anticoagulants.
People should also contact a doctor if they develop symptoms of DVT, such as pain or tenderness, swelling, or feeling of firm veins.
The 10 Best Short Throw And Ultra Short Throw Projectors
BenQ V5000i 4K UST laser projector
Great for gamers, excellent built-in sound
Jump to detailsVava VA-LT002 Home Theater Projector
Best mid-priced UST projector
Jump to detailsLG Cinebeam HU715QW
Another great ultra short throw all-rounder
Jump to detailsEpson EpiqVision LS300
Best affordable ultra short throw projector
Jump to detailsWemax Nova 4K Laser Projector
Best big-picture projector for a cinema experience
Jump to detailsOptoma GT2100HDR 1080p projector
Best overall short throw projector
Jump to detailsBenQ X500i 4K gaming projector
Best short throw projector for gamers
Jump to details Show 7 more itemsDeciding on which home theater projector to put in your house can come down to one little word: "throw." Long throw, standard throw, short throw, and ultra short throw (UST) are all types of projectors, and they all vary in terms of how much space or distance you need to project a big, beautiful, movie theater-like picture at home.
And while different manufacturers and screen makers vary on the distances needed for each, generally speaking, for a 100-inch image (diagonal), a long- or standard-throw projector could need anywhere from around 8 to 10 feet or more, a short-throw sits around the 3- to 5-foot range, and UST projectors require the least at anywhere between 3 to 20 inches.
Short-throw and UST projectors are often
These projectors are changing the game for people who don't have big rooms for their home theater setups, and they are becoming much more common and reasonably priced, giving buyers a greater amount of choice than ever.
While UST and short-throw projectors can be pricey, ranging anywhere from $1,000 to more than $6,000, and often require a special ambient light rejecting (ALR) screen, if a big-picture theater at home is what you're after, aone of these projectors is the way to go. With that in mind, we've rounded up the best short throw and ultra short throw projectors on the market right now, hitting a variety of price points.
Image used with permission by copyright holder Samsung LSP9T Premiere Best overall UST projector Pros
Samsung's ultra short throw projector has an excellent collection of specs that guarantee a high-end home theater experience while also saving a bunch of space. That includes a 2,800-lumen bulb that ensures images will be visible even in bright-room conditions, 4K resolution at up to a 130-inch image size, and Samsung's own Tizen smart TV platform for browsing apps and more.
This ultra short throw project also comes with 30-watt speakers, and while projector speakers aren't generally that impressive (we highly suggest getting a full sound system), these plus the built-in subwoofer are better than traditional TV speakers. It's also a smart projector with support for Alexa, Google Assistant, and Samsung's own Bixby voice assistant, so you don't have to get up when you can turn the projector on or search for a show with basic voice commands.
Like many short throw projectors, Samsung's model is also fairly portable if you'd like to move it to different locations and doesn't require the same sort of calibration each time that other types of projectors may require. It's a complete package, although the price may deter some buyers.
Samsung LSP9T Premiere
Best overall UST projector
Pros
Cons
The BenQ V5000i is a big and bold 4K, triple laser RGB ultra short throw projector with a beautifully bright and clear 2,500-lumen picture that excels in a dark room. And with BenQ's Pro-HDR tech (with support for HDR10, HDR10+, and HLG), colors and contrast are excellent, too, even with some light in the room.
The V5000i is BenQ's follow-up to the single-laser V7050i on our list, and its 100-inch picture blew me away during my review. It features a wide range of picture settings for you to choose from — including Bright, Cinema Bright, and Filmmaker mode — and adjustable manual settings to help you dial it in. Gamers won't be left out in the cold either, as the V5000i features Auto Low Latency Mode (ALLM) and a 120Hz refresh rate at 4K.
Like with most projectors (and even the best TVs), you're probably going to want to upgrade to a soundbar or even connect it to your AV receiver for better sound, but give the V5000i's built-in 40-watt speaker system a try first — it actually sounds pretty good in a pinch.
For a little extra money, you can get the V5000i with a 100-inch ambient light rejecting (ALR) screen to ensure the best possible brightness, color, and contrast. The BenQ V5000i also comes with a Google TV dongle built-in, so you can get streaming through all your services in no time. With three additional HDMI ports (two HDMI 2.0 and one HDMI 2.1), you can also connect streaming devices or a Blu-ray player, too.
BenQ V5000i 4K UST laser projector
Great for gamers, excellent built-in sound
Pros
Cons
Hisense's TriChrome engine is the real highlight of this ultra short throw laser projector, able to reach 107% coverage of the BT.2020 color gamut: that means extra color accuracy, which is always an important consideration for projectors. Combine it with the peak brightness of 2,200 lumens, and you won't have to worry about losing any image detail if you're switching from a TV. It also provides a 4K image at up to 130 inches.
We love to see a projector supporting the Dolby Atmos sound format as well. Add in the HDMI eARC support for easy passthrough connections for modern speakers, and this is one of the best projectors for sound quality you can find. Thanks to its Android TV platform, it's also friendly for Google app users and supports casting video using the Chromecast tools.
If there's any downside here, it's that 130 inches is a fairly large space, and you'll need a lot of room for a screen that large, which may not fit in every home theater space.
Hisense PX1-PRO
Best UST for color reproduction
Pros
Cons
Vava's UST projector is more of a midrange model that allows buyers to save some money without skimping on too many important features. Those features include support for up to a 4K image, a lamp that can reach 1,800 lumens of brightness, and capable 60-watt Harmon Kardon speakers. This is another projector that supports the Android TV platform, which should make managing your streaming services even easier.
We also like to see support for both HDR10 and Dolby Audio here, which will work well if you are primarily interested in a movie-watching experience. It's another model that's highly portable, too, so you can easily reposition it or take it to different rooms (classroom, meeting rooms, etc.) if necessary.
Vava VA-LT002 Home Theater Projector
Best mid-priced UST projector
Pros
Cons
Combine the impressive 2,500 lumens with 4K technology backed by LG's XPR tech, add in support for HDR10, and this projector can really deliver an image to make your friends jealous. It's another model that includes Dolby Atmos and HDMI eARC to benefit your careful speaker setup, too.
The platform also uses LG's ThinQ smart tech, which means you can give voice commands if you like. Screen sharing is supported via AirPlay 2, Miracast, and more. There are also some handy modes here, including different brightness modes for medium light, bright rooms, dark rooms, and others. Unfortunately, the two 20-watt speakers could be more impressive, so this is another example of why you'd really want an external sound system or soundbar to use as well.
LG Cinebeam HU715QW
Another great ultra short throw all-rounder
Pros
Cons
It's hard to find a budget ultra short throw projector, but Epson's model will probably be the best you can find. It costs about the same as a very good HDTV, and you get support for up to 4K images at 120 inches, although only native Full HD support (always look at the native support numbers). The laser can reach 100% of the traditional RGB color base, and HDR optimization is here as well for improving contrast and clarity for many kinds of content.
Android TV and its associated support for Chromecast casting are here as well, making this another good pick for Google users or those streaming content from other devices. The Yamaha 2.1 speakers are also very good, considering the price. And brightness is perhaps the most impressive of all, reaching all the way up to 3,600 lumens if necessary (although staying at that level will burn your bulb out quickly). All in all, this is an ideal pick if you want to replace a TV that's frequently watched in the daytime.
Epson EpiqVision LS300
Best affordable ultra short throw projector
Pros
Cons
This well-rounded projector does all kinds of things right, starting with 4K support, HDR10, and an extra-large image option that can reach up to 150 inches (although, at that point, your 4K resolution may not be the same). It has a great 2,100-lumen rating that pairs well with ALPD technology that uses light more efficiently to help reduce eye strain at closer distances and save lamp life.
While the main draw here is the support for extra-large images that can easily span a whole wall or home theater room, the broad support of this Wemax model — which also uses Android TV — makes it a good fit for a variety of users. Although if you really want that 150-inch cinematic experience, you may want to break out the measuring tape before you hit the buy button.
Wemax Nova 4K Laser Projector
Best big-picture projector for a cinema experience
Pros
BenQ makes some excellent projectors, and has done for some time, but the BenQ V7050i is the Taiwanese multinational company's first laser projector, and it's safe to say that it's off to a good start.
First off, the "i" in the product number signifies that it's among BenQ's lineup that's made for streaming services, and the projector's built-in Android TV platform is the driving force behind delivering all that content. With a bright 2,500 ANSI lumens, this laser projector will be well suited for any bright rooms, and with 98% DCI-P3 color coverage and BenQ's HDR-Pro technology, it will deliver excellent vivd color with detailed HDR contrast in 4K resolution.
And, of course, it's an ultra short throw projector, meaning those with smaller spaces or who just don't want to hang a projector from their ceiling and like to keep it all neat and tidy near the screen, will prefer this setup instead. The V7050i will throw an image up to 100 inches from just 8.7 inches from the screen and can produce a maximum image size of 120 inches.
Sound isn't awesome on the V7050i, with its dual 5-watt speakers, but who cares. If you're spending this kind of money, spring for a solid soundbar of even a decent home theater surround sound system that you can connect through the projector's HDMI ARC output. Lastly, if you like what you see with this model, you might want to hold off and wait for BenQ's upcoming new V5000i HDR RGB laser projector that we're eagerly waiting to get our hands on.
BenQ V7050i 4K Laser Projector
Great for smart TV features
Pros
Cons
If you can't yet fork over the extra cash for a primo UST projector and you have a little extra room to spare in your viewing room, then the Optoma GT2100HDR short throw projector could be a good option. The GT2100HDR comes from a long model line of well regarded 1080p (1920 by 1080) Optoma projectors that offers a beautiful and bright 2,400 ANSI lumen image from its DLP laser source, for under $1,500.
A great entry-level option for movie lovers and gamers, the Optoma GT2100HDR can throw a 100-inch image onto a screen of wall from just over 3 feet away, up to a maximum of 292 inches diagonal, making backyard movie nights an option (it is not weather resistant, though).
The Optoma GT2100HDR supports HDR10 and HLG HDR formats, so you know the contrast is going to be solid (it may struggle a little in bright rooms, though), and it can reproduce the Rec.709 color gamut, which means vivid and accurate colors no matter what you're watching. Two HDMI 2.0 inputs means you can connect streaming devices, Blu-ray players, and game consoles, and the projector's low 8.6 millisecond input response and 120Hz refresh rate, while not mind blowing, will serve gamers well.
Like most projectors in this category, the built-in speakers are not going to win any awards, so we'd recommend adding a soundbar or using your own home stereo setup for sound, which you can connect to through the projector's 3.5mm output.
Optoma GT2100HDR 1080p projector
Best overall short throw projector
Pros
Cons
If you have limited space in your living room or games room, the BenQ X500i is one of the best-priced and feature-rich short throw projectors you can buy. With a throw ratio of 0.69:1 to 0.83:1, you can game on a screen size of 100 inches with the projector at just five feet away. It's auto keystone adjustment is great, and will have you up and running fast.
For gamers, the the BenQ X500i is a powerful 4K projector that console gamers will love for its feature that lets you connect any console (such as PlayStation, Xbox, and Nintendo) ad the projector will automatically optimize its settings for the console. The X500i also impresses a fast 4.16ms response time for reduced input lag while killing bad guys, and you can even choose from FPS, RPG, or SPG game modes to further customize the experience. Additionally, you can even use BenQ's SettingXchange website to access a whole database of projector settings that are perfect for specific games.
But even though this is a great gaming projector, its 2,200 ANSI lumens of brightness, 84% coverage of the DCI-P3 gamut, HDRPro and HDR10 support, and Dolby Atmos and spatial audio sound means that it's a monster when it comes to watching movies, too. It's also got Android TV access through an included streaming stick, in case you don't already have a streaming device to connect. Its two 5-watt built-in speakers aren't anything to write home about, so a soundbar or a good pair of headphones are a good idea.
The BenQ X500i gaming projector features Wi-Fi, Bluetooth, two HDMI inputs, USB-C and USB-A inputs, as well as Chromecast and AirPlay support. Plus, at just $1,700, it's a great value for gamers and movie lovers.
BenQ X500i 4K gaming projector
Best short throw projector for gamers
Frequently Asked QuestionsWhat is throw distance?
Throw distance is the minimum/maximum distance the projector can be from a surface (like a screen or a wall) to cast a desirable image. Short throw projectors can generally throw a 100-inch image from roughly 3 to 4 feet from the screen, while ultra short throw projectors tend to have a range anywhere from around 3 to 20 inches.
How many lumens do I need?
Brightness is critical for projectors, determining how clear the image will be and how dark the room needs to be to properly see it. Brightness is measured in lumens, though ANSI lumens are a common measure in DLP (digital light processing) projectors.
There isn't a hard and fast way to measure lumens, so the actual lumen rating can vary from model to model. Generally, the most common brightness for short and ultra short throw projectors is between 2,000 and 2,500 lumens. Portable projectors are usually significantly dimmer, but that's largely because of the smaller lighting fixture in the compact form factor.
How does resolution work on a short throw projector?
Resolution naturally determines the clarity of the image. This is measured the same way it is on televisions and monitors. It's important to read the fine print when shopping for projectors, however. Many will boast 4K or 1080p resolutions but are referring to the content the projector supports — different than the projector's native resolution. Many cheaper projectors will promote HD resolutions but only have a native resolution of 840 × 480 (DVD quality).
Any time you're shopping, check the native resolution to get a clear idea of what the image will look like.
Do I need to worry about projector connectivity?
Projectors these days usually come with a healthy number of ports to connect Blu-ray players, gaming consoles, and streaming devices. These are usually critical, even if the projector has a built-in smart TV interface, such as Google TV or Android TV. These interfaces are usually clunky and outdated, so you'll always have a better experience connecting an external media device.
You will also want to make sure the projector has audio-out jacks or HDMI eARC. Projector speakers are usually weak, if they have speakers at all. To get the best experience, you'll want to connect a soundbar or home theater system.
If you want to go wireless, some projectors do support AirPlay or Chromecast, though this is far from a universal feature. But you can make just about any projector cast video by connecting an Apple TV, Chromecast, or another streaming stick.
Are short throw and UST projectors better than regular throw projectors?
That all depends on what your needs are, but compared to regular throw projectors, short throw and UST projectors are easier to set up as they do not require as much room to throw an image and can be more conveniently placed much closer to the screen, often on your existing media console.
Because of this closer setup, there's no worry about people walking in front of the projection beam casting a shadow and ruining your viewing, and there's no need for often messy or intrusive ceiling mounting. Picture-wise, however, the fact that it's a short throw or UST projector doesn't determine its picture quality — normal throw and UST projectors can have similar resolution and picture quality specs.
Do I need a screen with a short throw or UST projector?
No, you don't need a screen with a short throw or UST projector, or with any projector for that matter, and you can simply project an image on to a clean and smooth white wall, if you like.
However, adding a proper screen will improve the picture quality immensely. But not all screens are created equal and some might be better for the projector you buy and the room situation you're in as some screens do better at managing the light in the room, especially if your projector isn't set up in a dedicated home theater room, like in a basement or where the light can be completely controlled. Some UST projectors actually will come with a perfectly paired screen, such as an "ambient light reflecting" (ALR) screen that does a much better job of filtering and reflecting light for brighter, clearer, more vivid picture quality.
Can I stream movies and TV shows with a UST projector?
Yes, of course! Many projectors, not just UST projectors, come with HDMI inputs that can be used to connect your streaming devices such as an Apple TV, Roku, or Amazon Fire Stick, just as you would with a TV. Some are even capable of 4K resolution and HDR features like Dolby Vision and DTS:X, as well as sound support for formats such as Dolby Atmos. A lot of projectors are also now coming with built-in smart TV operating systems such as Android TV, webOS, and Tizen, that all support every streaming service you can think of.
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Insurance and credit cards expert Laura Adams is one of the nation's leading personal finance and small business authorities. As an award-winning author of multiple books, keynote speaker, host of the "Money Girl" podcast (more than 42 million downloads) since 2008, and founder of The Money Stack newsletter, Laura offers practical advice that benefits millions of readers, listeners and loyal fans. She was named one of Empower's "Top 50 Women in Personal Finance" in 2018. Laura's podcast inspired her first book, "Money Girl's Smart Moves to Grow Rich," which won the 2011 EIFLE (Excellence in Financial Literacy Education) award. Her latest title, "Money-Smart Solopreneur: A Personal Finance System for Freelancers, Entrepreneurs, and Side-Hustlers" (Entrepreneur Press), was an Amazon No. 1 new release. Laura is a trusted source for national media outlets, which frequently seek her practical advice on insurance, credit cards and various other financial topics for TV, radio, online articles and print publications. She's been featured on most major news outlets including ABC, Bloomberg, CBS, Consumer Reports, Forbes, Fortune, Fox, Money, MSN, NBC, NPR, The New York Times, USA Today, U.S. News & World Report, The Wall Street Journal and The Washington Post. Her mission is to empower consumers to live healthy and rich lives by making the most of what they have, planning for the future, and making smart money decisions.
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