Malaysia Revolutionary
Digital Radiography (DR) System

Nano Medic Care Sdn Bhd
WDM Digital Radiology System Logo
A blue background with a human body undergoing digital radiography.

what is Digital Radiography System

Digital radiography (DR) is an advanced type of x-ray examination, which produces an electronic radiographic picture promptly on a computer. This technique makes use of a level panel detector to capture data during object examination, which is immediately transferred to a computer without the use of an intermediate cassette.


Image of the New Oriental 1000DC Digital Radiography System Digital Detector Arrays​

Digital Radiography Technology

There are two types of digital imaging systems used in intraoral radiography  –

  1. Computed Radiography(CR)
  2. Digital Radiography(DR).

CR uses a Photostimulable Phosphor (PSP) cassette to capture the image.

DR uses Amorphous Silicon (a-Si) or Cesium Iodide (CsI) Flat Panel Detector.

Flat Panel Detectors (FPDs) are the most common kind of direct digital detectors. 
They are classified in two main categories:


The most common material used in commercial FDP is FDP Amorphous silicon (a-Si). To convert the X-rays into light scintillator are combined with a-Si detectors in the outer layer of detector’s and gadolinium oxysulfide (Gd2O2S) or caesium iodide (CsI) are used in making its outer layer. The a-Si detector is called an indirect imaging device because of this conversion. The a-Si Photodiode layer is used as a channel where light passes through and is converted into a digital output signal. Fiber-coupled CCD  or (TFT) thin-film transistors are then used to read out the digital signals.

Image of the New Oriental 1000DC Digital Radiography System Chest Demo


X-ray photons are transformed directly into charge by using FDP (a-Se) Amorphous Selenium that is why it is also called direct detectors. High voltage bias electrodes are used in the out layer of its flat panel. Electron-hole pairs are created by X-ray photons in a-Se, and the potential of bias voltage charge is responsible for the transit of these electrons. TFT array, microplasma line addressing, active matrix array, or electrometer probes are then used to read out the charge pattern when all the holed are replaced by electrons.

What are the Advantages of Digital Radiography?

Digital radiography offer many advantages to the non-destructive testing community, including:

What is the Difference Between Digital Radiography (DR) and Computed Radiography (CR)?

Comparison Image of CR12bits & DR 14 bits

DR 14 bits & CR 12bits Comparison

Linear detector arrays and active matrix flat panels are used in digital radiography systems, dynamic matrix array of (TFT) thin-film transistors and photodiodes are deposited under their detection layer. Digital data become available for analysis in no time through digital radiography.

Photo-stimulated luminescence screens are used by computed radiography cassette for X-ray images instead of X-ray films. Stored data gets converted into the digital image when computed radiography images go into radar. The rigid holder is not required by computed radiography images because they are flexible. A detector can fit in curved areas with flexible cassettes.


Both (DR) digital radiography and (CR) computed radiography has a wide range of functions and can eliminate noise but digital radiography has advantages over computed radiography. Digital radiography is more efficient than computed radiography and produces better quality images than computed radiography. Digital radiography is faster, more advanced, and less in price than computed radiography, these all features make digital radiography a better choice and more advanced machine.

Comparison Between Computed Radiography (CR) And Digital Radiography (DR)

  • Investment & CostsInvestment & Costs
  • InstallationsInstallations
  • Dose (DQE)Dose (DQE)
  • Labor-intensiveLabor-intensive
  • Image QualityImage Quality
  • SpeedSpeed
  • StorageStorage
  • DurabilityDurability
  • Work LoadWork Load
  • Computed Radiography (CR) X-ray

  • Comparison

  • Investment & CostsLower initial investment, more requirement for maintenance. 3 year ownership cost of CR is very expensive considering the following:

    - IP Plates recurring cost
    - Service Cost of the CR reader
    - Work flow inefficiencies
    - Higher dose required

  • InstallationsCan be retrofitted to existing installations
  • Dose (DQE)DQE is better than Film but lower than DR. With time the IP plate tends to deteriorate, by which the dosehas to be increased to geta diagnosable quality image.
  • Labor-intensiveLabor-intensive due to need for cassette transfer to plate reader
  • Image QualityImage can be digitized but at much lower resolution. Similar to quality of DR at high-dose levels and can degrade in the time it takes to process the cassette.

    12 bit Gray Scale definition
    (only 4000 shades of Gray)
  • SpeedOnce the image is captured, it has to be scanned, in CR reader, so the average time is more than 3 minutes. Additional steps to obtain the image.
  • StorageDigitized image storage is more space efficient than film
  • DurabilityImage Plate deteriorates with time thus quality of the image also decreases with usage

    - Every 6 to 8 months new IP plates have to be purchased (depends on usage)

  • Work LoadManual Driven with IP plates need to be physically carried and scanned to get the image.
  • Digital Radiography (DR) X-ray

  • Comparison

  • Investment & CostsHigher Initial Investmen, less requirement for maintenance. 3 Years ownership cost of DR achieves optimum return on investment in addition to:

    - Better image at lower dose.
    - Less RT Labor.
    - Higher productivity

  • InstallationsAll new setup necessary
  • Dose (DQE)Flat panel detectors allow low dose. DR outperforms CR both in DQE. Some research shows that Dose can be reduced as much as 50%
  • Labor-intensiveCompletely digitized setup
  • Image QualityHigh-quality digital image. Better image quality with respect to contrast and detail detectability.

    14bit Gray Scale Definition
    (16,000 Shades of Gray)
  • SpeedImage is immediately displayed within 10 seconds. Faster throughput and save more resources.
  • StorageEasy storage and instant access to archive images
  • DurabilityOver 1 million exposures
  • Work LoadThe workflow of DR achieves complete automation. Higher patient turnaround time.

Digital Radiography Applications

As with all NDT processes, digital radiography as numerous applications, including:

With 60 years’ dedication to medical imaging, Wandong “WDM”, a well‐known brand globally。

Nano Medic Care

DICOM 3.0 compliance

NEW ORIENTAL 1000 is DICOM 3.0 compliance that means you can benefit from all relevant DICOM services, including DICOM worklist, image storage, printing and other functions that will significantly improve your workflow.

Our products are FDA approved and CE certified, as well as HIS and RIS system compliance. Our manufacturer has accreditations such as ISO9001-2015 and ISO13485.

A man in a lab coat demonstrating digital radiography on a tablet with icons.
WDM Digital Radiology System Logo

How can Wandong Digital Radiography System Help?

Beijing Wandong Medical Technology Co., Ltd. is on the Shanghai Stock Exchange since 1997 and it is established in 1955 with the name Beijing Wandong Medical Equipment Co., Ltd (Previous name). Its headquarter occupies has more than 100,000 square meters for its modern R&D center and production base located in Beijing. It has more than 30 branches all over China and a sales network spread over more than 70 countries.

With 60 years’ dedication to medical imaging, Wandong has made a brand name of “WDM”, a well‐known brand globally. As one of the largest radiology imaging equipment manufacturers in the world, Wandong has a wide range of product lines including General Radiography, Mobile X‐ray & C‐arm, Digital Radiography (DR), Digital Fluoroscopy (DRF), Digital Mammography, Cath‐Lab, Computed Tomography (CT) and Magnetic Resonance Imaging (MRI) machine, and the annual production capability is more than 6,000 units.

Wandong Company history

65 Years: established in 1955
23 years
as a listed company: since 1997
Largest Medical Imaging Manufacture in China

Sales and Marketing

30+Branch offices/ distributors over China
sales and service network around the world
International Medical shows: MEDICA, RSNA, Arab Health, ECR


Engineers: 350+ among 800+ employees
Test Labs
: High Tension Research Lab, System Research Lab, Digital Image Lab, 3-D Reconstruction Lab and Mechanical Endurance Lab


Area:125,000+ SQM
Capacity: 8,500 units annually
40,000+ units in operation
>1700+ units sold in 2019,

WDM Product Highlights And Advantages

Exclusive patent technology - InvaRay

Advanced Digital Imaging Processing Software Platform

APR: Anatomic Program Radiography

-Body shapes: 5 choices
-Positions: 30 choices
-Radiographic modes: 4 choices

Table Side Operate

-Body shapes: 5 choices
-Exposure Parameter set
-Parallel communication with workstation
Last Image Display

Automatic Image Stitching (Optional)

-Whole spine Radiography program

Benefit Feature

Integrated operation user interface for control of the whole system including mechanical system, exposure parameters, image acquisition & processing and reporting, greatly improves workflow. DAP optional

Fully Automatic


Faster, Easier, Safer

Safer protection system

To protect the patient from moving machine radar detecting system and infrared switch is installed. The safety of the machine is guaranteed.

High acquisition speed

The process of acquisition is completed in seconds in acquisition mode if you double click on your mouse.

Fast position switch

To switch to a standing position from a lying position only 10 seconds is needed.

Five- axis electric control

Mostly important clinical positions for examination is pre-set, so radiologists feel easy in operation and can switch position just by one click. New positions can also be installed manually.

Auto-tracking function

Position time remarkably reduced by dosage parameters, FPD detector, and X-Ray tube has auto-tracking and automatic adjustment of “collimator radiation field”. Position can be changed simply by “one push-button” on the control panel.

Compare with other brands

  • Anatomic Program Radiography (APR)
  • Automatic Image Stitching
  • Table Side Operate
  • Five- axis Electric Control
  • Fast Position Switch
  • High Acquisition Speed
  • Safer Protection System
  • WDM

  • Yes
  • Yes
  • Yes
  • Yes
  • Yes
  • Yes
  • Yes
  • Others

  • No
  • No
  • No
  • No
  • No
  • No
  • No

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