• Print

Diagnostic Imaging Services
Commonwealth Health Center offers its patients a broad selection of advanced diagnostic imaging services.  Highly trained professionals ensure that all CHC imaging procedures are fast, safe and painless to accurately and efficiently diagnose diseases in their early stages.  The result: better outcomes and better health for our island residents and visitors.  Please note that a doctor’s referral is required for all diagnostic imaging procedures.

Additional Resources
The Radiological Society of North America (RSNA) and the American College of Radiology (ACR) have developed the patient education website RadiologyInfo ( to provide additional information on diagnostic imaging and general radiology procedures.

Along with standard X-Ray services, CHC Imaging Services include, CT Scan, Ultrasound,Mammography, and Fluoroscopy

CT Scan
A CT (Computed Tomography) scan is a sophisticated diagnostic imaging procedure that permits cross-sectional imaging to allow physicians to see a single slice of the body…just as if you were taking a slice of bread out of a loaf. CT scans are used for diagnostic procedures that range from examining the head for bleeding or blood clots, to determining an organ’s size and shape, to evaluating disease processes.  Using this technology, physicians can view the inside of anatomic structures, a feat not possible with general radiography procedures.  Radiation exposure is low.

Ultrasound imaging, also known as sonography, uses sound waves to produce images of organs, vessels and tissues in the body.  The procedure has many applications, including: evaluating blood flow within the heart, detecting breast cysts or gallstones, assessing the health of unborn babies, and examining the uterus, liver, kidneys, pancreas, colon and urinary bladder.  During an ultrasound exam, inaudible sound waves create “echoes” as they bounce off organs and tissue… and these echoes are then converted into an image on a computer screen.  It is a safe, effective form of imaging that does not produce ionizing radiation.

Mammography is an X-Ray procedure that uses low-dose radiation to create an image of breast tissue.  It is currently the best way to detect early breast cancer and improve the odds of successful treatment.  A mammogram can reveal breast lumps up to two years before they can be felt.  The American Cancer Society recommends that women receive a mammogram once a year after age 40, though women with significant risk factors may need to have a mammogram sooner or more often.  The entire procedure, including preparation and processing the images, usually takes 40 to 60 minutes.  Actual exposure time is very short.

Fluoroscopy is a specialized diagnostic procedure that permits examination of either the large bowel or the upper gastrointestinal tract, which includes the esophagus, stomach and small intestine.  A fluoroscope is an X-Ray unit combined with a television screen that allows a radiologist to observe the flow of a contrast agent called liquid barium through the part of the body being examined.  A series of X-Rays are taken in different positions, and the stored images are used to diagnose diseases of the GI tract.  The contrast agent passes through the body very quickly but patients are encouraged to drink plenty of water following the examination.

FDA Awards CHC Mammography Services
MQSA Recertification for 2011
Commonwealth Health Center (CHC) Mammography Imaging Services has earned recertification through the Food & Drug Administration (FCA), Mammography Quality Standards Act (MQSA) for excellence in providing mammography services to all CNMI patients.  This seal of approval signifies that the CHC Mammography Department has voluntarily pursued a rigorous review to ensure its mammography program meets or exceeds national standards.

With FDA MQSA certification, patients are assured that the CHC’s interpreting radiologists, technologists and its medical equipment have been judged by a third-party to meet the highest quality standards for performance and safety.

 Manager of Radiology 

Daniel Harding  

                                                           X-Ray Radiologic Technologist                   Ultrasonographer                               / Mammographer

Ma. Cecilyn Jalad – Lead                         Miriam Bayle

 Emma Santos                                        Nolia Muellersman

Lamberto Sarmiento 

Arturo Tagum 

Roxanne Soriano

X-Ray Radiologic Technologist         X-Ray Radiologic Technologist/CT Scan 

Leonides Baja                                        Ernesto Guillermo

 Jerry Larioza                                         Jose Habijan



 Hours of Operation: Weekdays, 7:30am to 4:30pm | Closed on all holidays and weekends 

 Contact Person: Daniel Harding

 Phone: (670) 234-8950 ext. 2401/2402/2403/2409/2410