Medical X-Ray Thermal Films: Types, Uses, and Buying Guide

In this complete guide, we will let you know how to choose the best X-ray imaging film, which brands are worth comparing, and what to avoid when sourcing from different suppliers. You can keep this guide for life, especially if you are a medical professional or work in the medical supply business.

What’s An X-Ray Thermal Film, and How Does It Work?

An X-ray thermal film, or dry thermal film, as the name suggests, produces images using thermal printing technology rather than traditional wet film processing. The film is coated with a heat-sensitive material on its surface that changes color when heated in the imaging printer, creating an image that can be interpreted by a radiologist.

A typical thermal film usually consists of three components, though we cannot see them with the naked eye.

1. A polyester substrate (175 – 200 micrometers in thickness, depending on the type)
2. The heat-transferred layer comprises the image-forming material
3. A topmost protective layer

When printed in a thermal printer, the image data captured from the digital detector is sent to the printer, and thousands of tiny heat elements in the printhead heat specific areas of the film to generate the image. Hotter areas are darker, while cooler, lighter areas are where the printer applies less heat. The result is a greyscale medical image – this process works very similarly to how ultrasound thermal paper works. At the end, the thermal film shows the levels of gray in detail for proper diagnosis. The whole process takes less than 30 seconds from print to a finished image.

What Are the Advantages of X-Ray Thermal Film?

With X-ray dry films, clinicians and medical professionals can eliminate the need for X-ray developer, X-ray fixer, or the hazardous waste associated with traditional wet-laser imagers. Traditionally, this is what happens when you print images. You are required to stay in a darkroom, just like how the photographers of the 80s and 90s did when processing images. Today’s X-ray thermal film makes it convenient for healthcare providers. No dark rooms and hazardous materials anymore.

Moreover, most thermal films nowadays can achieve a density of around Dmax of 3.0, providing radiologists and doctors with more room to see small details for diagnostic purposes. Additionally, note that medical imaging resolution typically ranges from 300 to 320 DPI for standard thermal printers. But newer models can support higher resolutions up to 600 DPI.

Wait, what do Dmax and DPI mean in medical imaging? Here’s a quick explanation:

• Dmax refers to the maximum density a film can reach. In plain words, it’s how dark the darkest area of the film can get.
  • In general, a higher Dmax means richer blacks and better contrast.
  • For medical X-ray thermal film, Dmax 3.0 is common, which is enough for doctors to see fine details in bones, tissues, and lesions.
• DPI means Dots Per Inch. This measures printing resolution. It tells you how many tiny dots the printer can place in one inch.
  • Higher DPI = sharper, more detailed images.
  • Now, most thermal printers output at 300 – 320 DPI, while newer ones can go up to 600 DPI, which gives tighter grayscale transitions and more readable diagnostic images.

Below is the table summarizing the differences between thermal film and other film types.

What Are the Standard Sizes of X-Ray Thermal Films?

The good thing about thermal X-ray film is that it comes in standard sizes, so you don’t need to struggle with choosing from various sizes. Standard X-ray film sizes on the market include:

Most boxes pack 100-125 sheets. Medical facilities and clinics ordering in bulk can get customized solutions with volume pricing.

What Should You Look for When Buying X-Ray Films?

Picking the right film depends on what kind of imaging you do. Here’s a clear explanation of why each film type is recommended for specific imaging needs:

1. General Radiography (Chest, Abdomen, Skeletal): Thermal X-ray film is the best fit. It provides good image quality fast, without the need for chemicals or complex processing. This makes it practical for high-volume routines where speed matters.
2. Mammography (Breast Imaging): Laser imaging film is recommended. Mammography demands very high resolution and exceptional image clarity to detect tiny calcifications. Laser film’s fine detail and high density deliver this diagnostic precision.
3. Dental Imaging: Thermal film is ideal. It offers quick results and easy handling, making it perfect for dental offices that frequently run numerous small X-rays daily.
4. Ultrasound and CT/MRI Hard Copies: Thermal film works well here as well. It supports digital imaging systems and produces clear prints from scans without generating additional chemical waste or incurring long wait times.
5. Fluoroscopy and Angiography: Laser imaging film is better. These procedures require sharp, high-contrast images to reveal blood vessels and motion in real-time. Laser film’s superior image quality meets those demands.

What Are The Popular X-Ray Film Brands Worldwide?

Picking a trusted brand means consistent quality and easier supply. Here’s who leads the global X-ray film market:

1. Fujifilm (Japan)

Fujifilm’s medical X-ray films are the No.1 brand in the world. They are known for their durability and strong resistance to humidity. If you’re looking for reliable image quality and less risk of film damage, especially if you’re producing it in high-humidity places, this is an excellent choice.

2. Agfa (Belgium)

Agfa’s film products are as good as Fujifilm’s. If you prefer a broader printer compatibility, this brand is a good choice, especially if most of your equipment is found in hospitals. This brand works well for facilities that have older or multiple printer types.

3. Carestream (USA)

Carestream’s thermal films strike a balance between affordability and quality, which most mid-sized hospitals and clinics prefer. You can produce decent images without splurging while still achieving the results you want.

4. Lucky Film (China)

Lucky Film is a medical X-ray film brand from China. For performance, affordability, and decent image quality, this is where the brand shines. If you’re producing a high volume of images for general diagnostics, this is a reliable brand that doesn’t compromise on quality.

Choose Panda Paper Roll’s High-Quality Medical Thermal Films

Overall, when purchasing thermal X-ray films, matching the film specifications with your printer should be a non-negotiable requirement. Aim for the right resolution, grayscale levels, and image density for your imaging needs. Store films properly and pick brands you can trust.

When it comes to cost-effective, consistent, high-performing thermal X-ray film, Panda Paper Roll has you covered. We offer X-ray films that support digital imaging systems and deliver sharp, diagnostic-quality images. They are available in different sizes to fit your exact needs. Contact us today and switch to Panda Paper Roll’s reliable medical films for a smooth workflow and top-notch patient care.