What Is the Difference Between PACS and DICOM Image Routers?

A group of radiologists review images on desktops

DICOM (Digital Imaging and Communications in Medicine) Image Routers and PACS (Picture Archiving and Communication System) are two vital technologies the health care industry uses to manage and access medical images.

Although they're frequently used together, these solutions have a few key differences. Let's examine the details of DICOM Image Routers and PACS. 

What Is PACS?

PACS acts as a digital library for medical images like X-rays, MRIs and CT scans while sporting some noteworthy features. Say a patient needs an X-ray. Once the X-ray is taken, it must be stored somewhere safe and accessible. That's where PACS comes in. It's essentially a high-tech filing cabinet designed to store and manage these images.

Think of it this way — before PACS, hospitals had rooms with shelves stacked with X-ray films. Finding a specific patient's X-ray among all those films was like searching for a needle in a haystack. PACS changed that.

However, PACS is more than just a storage system. It's also a communication tool. Let's say a radiologist needs to review the patient's X-ray. Instead of physically transporting the X-ray film to the radiologist's office, you can use PACS to transmit the image to their computer screen instantly. Talk about convenience!

Here's where things get even cooler. PACS can also organize images by patient, date or body part, making it easy for doctors to find what they need quickly. Plus, it often integrates with other hospital systems like electronic medical records (EMRs), so health care professionals can access all the patient's information in one place. 

Benefits of PACS

Let's take a look at the benefits of PACS:

  • Improved accessibility: PACS allows health care professionals to access medical images and patient data from any location with internet connectivity. 
  • Enhanced efficiency: PACS improves image retrieval by digitizing medical images and automating workflows, saving time and effort in accessing crucial imaging data.
  • Enhanced collaboration: PACS allows health care teams to collaborate by providing simultaneous access to medical images. As a result, PACS fosters interdisciplinary communication and decision-making.
  • Cost savings: PACS eliminates the need for physical film-based storage systems, reducing storage costs and the risk of lost or damaged images.

What Are DICOM Image Routers?

DICOM image routers are a specific type of hardware that manages the routing, storage and retrieval of data among various medical imaging systems and archives. Think of them as the traffic controllers for medical images within a health care network.

Just as a medical professional directs patients to the right department for their needs, the router directs medical images from different devices to their appropriate destinations. For example, DICOM routers can route MRI data or CT scans to storage archives or viewing stations.

It controls the flow of these images, ensuring they meet certain requirements and arrive at the right location at the right time. This helps streamline the process of accessing patient images for diagnosis, treatment planning and monitoring.

Essentially, a DICOM image router acts as a guide, ensuring the efficient and well-organized movement of vital medical imaging data throughout the health care facility.

Benefits of DICOM Image Routers

Now, let's explore the benefits of DICOM image routers:

  • Integration with workflow systems: DICOM image routers can integrate with other health care IT systems, such as EMRs or radiology information systems (RISs), to streamline workflow processes.
  • Efficient communication: DICOM image routers securely transmit images to PACS systems following predefined rules.
  • Workflow optimization: DICOM image routers automate image routing, reducing processing time and errors.
  • Scalability: DICOM image routers are scalable solutions. They handle large data sets efficiently, accommodating growing imaging data.
  • Enhanced patient care: DICOM image routers enable quick access to images, leading to faster diagnoses and treatment planning.

PACS vs. DICOM Image Routers

A chart that compares and contrasts PACS and DICOM Image Routers

While both PACS and DICOM image routers are integral components of medical imaging infrastructure, they have distinct purposes within the health care ecosystem.

As a quick recap, PACS is a complete system for storing, retrieving and distributing medical images and related patient information. It acts as a digital library. It's a centralized repository where medical professionals can access and review medical images from anywhere within the medical facility or remotely. PACS also provides tools for viewing, interpreting and analyzing images, typically integrated with RISs and EMRs.

On the other hand, DICOM image routers are specialized hardware that efficiently and securely route medical images within a network. They act as traffic controllers. They help direct medical images from imaging devices to the appropriate destination within the PACS or other storage systems based on predefined rules or criteria.

So, while PACS stores and displays the images, DICOM routers help organize and deliver them to the right spot in the system, ensuring everything runs smoothly behind the scenes.

How Are PACS and DICOM Image Routers Used Together?

While there are differences between DICOM image routers and PACS, they are dynamic partners in the medical imaging industry. As we know, PACS is essentially a medical facility's digital library. However, PACS relies on DICOM image routers to manage the efficient transfer of images from different imaging devices to the PACS system. Consider the following scenario of a busy hospital where various departments constantly require medical images to diagnose and treat patients.

PACS acts like the hospital's central digital library where all these images are stored. Just like a library with books, PACS keeps these images organized and accessible. That way, medical staff can easily find and view them on their computers when they need to assess a patient's condition or track the progress of their treatment.

Now, think of DICOM image routers as the efficient mailroom staff within the hospital. When a new image is generated by an MRI machine in the radiology department, the DICOM image router sends this image directly to the PACS system. It knows exactly where in the "library" this new image needs to go, ensuring correct storage and quick accessibility.

In practice, when a doctor orders and performs an MRI scan for a patient, the DICOM image router picks up the resulting image. This router then sends the image straight to PACS, where it is immediately stored and ready for the doctor to view, often before the patient returns to the doctor's office.

As you can see, PACS and DICOM form a symbiotic relationship. By working together, PACS and DICOM image routers ensure all medical imaging is organized, secure and readily available to medical staff, facilitating quick diagnoses and effective treatment planning.

A female doctor discusses results with a patient

Learn How Candelis Can Help

By understanding the differences between PACS and DICOM and their distinct roles and functions, you can improve workflows, collaboration and patient care outcomes. At Candelis, we know the importance of effective medical data management. We provide advanced solutions designed to address the changing requirements of health care institutions.

Our ImageGrid DICOM routers and PACS solutions help health care facilities simplify image transfer, resolve patient conflicts and improve radiology efficiencies. Our solutions allow health care professionals to concentrate on providing excellent patient care and increasing practice efficiency by offering quick study transfers and optimizing workflows.

Book a free demo to learn more about our comprehensive medical data management solutions. For more information, feel free to contact us online today.