Contact Us :
Phone Numbers
Solano Diagnostics Imaging – Fairfield & Vacaville:
(707) 646-4646
Please see location button below
Office Hours
Please call to confirm hours

At NorthBay Healthcare, we provide some of the most advanced diagnostic imaging technology available in the region. In addition to our hospitals imaging departments, our outpatient imaging services are available in several Fairfield and Vacaville locations.

X-ray and Bone Density exams are done on a walk-in basis (no appointment needed). MRI, Ultrasound, PET, CT, Breast Biopsy, and Mammography exams are done by appointment only.

Services We Provide:

A CT scan, also known as Computer Tomography or CAT scan, is a noninvasive imaging scan that can depict bone structures in fine detail. It can also show differences in normal and abnormal tissue in the brain, lungs, and many other organs.

CT scans of internal organs, bone, soft tissue and blood vessels provide greater clarity and reveal more details than regular X-ray exams. Using specialized equipment and expertise to create and interpret CT scans of the body, radiologists can more easily diagnose problems such as cancers, cardiovascular disease, infectious disease, trauma and musculoskeletal disorders.

Tips for a successful exam

CT scans are very quick, but require you to lie on your back for up to 30 minutes. If you have pain while lying down, please let your physician know.

CT with contrast

Some exams require the administration of IV contrast (some times called "dye"). Most of these type of exams will have the contrast administered through a vein in your arm. You may be required to have a blood test prior to the exam to make sure your kidneys can handle the dye with no issues.

CT scans of the abdomen or pelvis may require the use of oral contrast. The oral contrast can be picked up at either of our locations and is used to help differentiate bowel tissue on the scan.

Exam Preparation

Please wear comfortable clothing that doesn’t contain metal (e.g. rivets in pants, embellishments on shirts, etc) or you will need to change into an exam gown for the procedure.

There is generally no extra preparation needed for a CT scan without contrast.

CT scans with intravenous (IV) contrast will require you to have lab work done to show how well your kidneys are functioning. Your doctor should order the lab work for you. Please make sure the lab work is completed no earlier than 30 days prior to your exam and no later than 2 days prior to your exam.

On the day of your exam, do not eat solid food for 4 hours prior to your scan. Drink plenty of fluids prior to your exam to assure you are well hydrated. You can take your normal medication prior to the exam. If you take Metformin (in any form) for diabetes, you will be asked to discontinue this medication after your exam for 48 hours.

Interventional Radiology is a radiology specialty that uses minimally-invasive techniques in combination with state-of-the-art imaging to diagnose and treat diseases in nearly every organ in the body. These procedures have less risk, less pain and less recovery time compared to open surgery.

MRI, or Magnetic Resonance Imaging, creates a magnetic field that produces images of soft tissue, bone, and other body structures without radiation. It captures multiple cross-section images and combines them into three-dimensional pictures, allowing caregivers to find and see problems in your body more easily.

Tips for a successful exam

MRI scans are very sensitive to motion and any movement can create blurriness in the entire set of images. It’s very important you do not move any part of your body while the scan is taking place and the machine is making noise. There are brief moments between scans while the machine is quiet when you can make minor movements, like scratching your nose, as long as you do not move your body position.

MRI scans require you to lie on your back for 15 to 45 minutes. If you have pain while lying down or suffer from anxiety (claustrophobia, etc), please let your physician know. They may be able to help with medication to make the MRI scan more bearable and reduce the risk of your images coming out blurry. Please keep in mind that some medications will make it necessary for someone else to drive you to and from your exam.

MRI with contrast

Some exams require the administration of IV contrast (sometimes called "dye"). Most of these type of exams will have the contrast administered through a vein in your arm. You may be required to have a blood test prior to the exam to make sure your kidneys can handle the dye with no issues.

Exam Preparation

Please wear comfortable clothing that doesn’t contain metal (e.g. rivets in pants, embellishments on shirts, etc) or you will need to change into an exam gown for the procedure. You will need to complete a questionnaire to identify if you have any implanted metal in your body prior to the exam, as certain devices are not allowed into an MRI scanner (such as most pacemakers and many aneurism clips). If you have an implanted device, please bring the device card you received after your surgery.

If any of the following conditions exist, notify our diagnostic imaging department before your exam:

  • Cardiac Pacemaker
  • Cerebral Aneurysm Clips
  • Cochlear Implants
  • Implanted Insulin or Chemotherapy Pumps
  • Implanted Neuro-Stimulator Devices
  • Pregnancy
  • Heart Valve Replacements
  • Other Prosthetic Devices
  • Metal Fragments in Eye (If you have worked with metal, e.g. welding/grinding, you may need an x-ray to assure there are no metal fragments)

We offer lockers to secure your valuables, but is not responsible for lost or stolen items. Please leave all jewelry and valuables at home.

Metal screening form

You can print and fill out our metal screening form to save time before your appointment. Every patient must complete the first page and the second page as it applies to your appointment.

In nuclear medicine, safe doses of radioactive materials are used to diagnose and treat ailments. SPECT cameras, for example, can visualize as much as 10 times more detail than other medicine procedures.

Positron Emission Tomography, or PET scans, use radioactive tracers in a special dye that are injected into your arm and then absorbed by your organs and tissues. When highlighted under a PET scanner, these tracers allow doctors to see how well your organs and tissues are working. The scan can measure blood flow, oxygen use, glucose metabolism (how your body uses sugar) and much more. PET scans are most commonly used to detect cancer, heart problems, brain disorders, and issues with the central nervous system.

Unlike other imaging tests, like CT or MRI scans, PET scans show abnormalities with tissues at the cellular level, which provides your doctor with the best view of complex systemic diseases, such as coronary artery disease, brain tumors, memory disorders, and seizures. When used to detect cancer, the test can show how the cancer metabolizes, how it may spread, and how well treatments are working.

While the scan does involve radioactive tracers, the exposure to harmful radiation is minimal. According to the Mayo Clinic, radiation levels are too low to affect the normal processes of the body. The risks of the test are minimal compared with how beneficial the results can be in diagnosing serious medical conditions.

However, radiation is believed to be unsafe for developing fetuses, so those who are pregnant, think they may be pregnant, or are actively breastfeeding should not undergo a PET scan.

Other risks of the test include feelings of discomfort if you are claustrophobic or are uncomfortable with needles.

What to expect

Before the scan, the tracers will be administered through an IV in your arm, through a solution you drink, or in a gas you inhale. Your body needs time to absorb the tracers, so you will wait about an hour before the scan begins.

Next, you will undergo the scan. This involves lying on a narrow table attached to the PET machine, which looks like a giant toilet paper roll. The table glides slowly into the machine so that the scan can be conducted.

You will need to lie still during the scan, and the technician will tell you when you need to remain still. You may be asked to hold your breath for short periods. You will hear buzzing and clicking noises during the test.

When all the necessary images have been recorded, you will slide out of the machine. The test is then complete.

Exam Preparation

Your doctor will provide you with complete instructions about how to prepare for your PET scan. Tell your doctor about any medications you are taking, whether they are prescription, over-the-counter, or supplemental.

You may be instructed not to eat anything for up to eight hours before your procedure. You will, however, be able to drink water.

If you are pregnant, or believe you could be pregnant, tell your doctor because the test may be unsafe for your baby. Also, tell your doctor about any medical conditions you have. For example, diabetics have special instructions for test preparation because fasting beforehand could affect their blood sugar levels.

You will need to remove all of your jewelry and/or body piercings, because metal can interfere with the testing equipment, and may be asked to change into a gown.

Post Exam

After the test, you’ll be free to go about your day unless your doctor gives you other instructions. Drink plenty of fluids after the test to help flush the tracers out of your system. Generally, all tracers will have left your body after two days.

Meanwhile, a special radiologist will interpret the PET images and share the information with your doctor. Your doctor will go over the results with you at a follow-up appointment.

Ultrasounds, also referred to as ultrasonography or sonography, use high-frequency sound waves and a computer to create images of blood vessels, tissues, and organs. Ultrasounds are used to view internal organs as they function and to assess blood blow through various vessels. Ultrasound procedures are often used to examine the abdomen, breasts, pelvis, prostate, scrotum, thyroid, parathyroid and the vascular system. During pregnancy, ultrasounds are performed to evaluate the development of the fetus.

Exam Preparation

Please wear comfortable clothing devoid of metal snaps, zippers, or belts. You may need to change into a gown or lift/remove clothing covering the skin in the area of interest. Certain exams require specific preparation such as refraining from eating or coming with a full bladder. Our scheduler will let you know if you have such a preparation which is essential to obtaining an optimal exam.


  • Complete drinking 32 oz. of water 60 minutes prior to your scheduled appointment time
  • DO NOT EMPTY YOUR BLADDER AFTER YOU HAVE COMPLETED DRINKING THE WATER; it is essential that your bladder is full for the exam. If you are not prepared at the time of the exam, you may need to be rescheduled.


  • Do not eat or drink anything for at least 8 hours prior to your exam
  • Eat non-fat foods the evening before your exam


  • Do not eat for 3 hours before your exam
  • Drink 16 oz of water 1 hour before your exam. Do NOT empty your bladder once you drink the water.


  • No preparation necessary

For all other ultrasounds (including Doppler and arterial studies) please call for preparation instructions

NorthBay provides a wide spectrum of women's diagnostic imaging in a space specifically designed to respect the privacy and comfort of women, including:

X-rays use invisible electromagnetic energy beams to produce images of internal tissues, bones, and organs on film. Standard x-rays are performed for many reasons, including diagnosing tumors or bone injuries.

X-rays are made by using external radiation to produce images of the body, its organs, and other internal structures for diagnostic purposes. X-rays pass through body structures onto specially-treated plates (similar to camera film) and a "negative" type picture is made (the more solid a structure is, the whiter it appears on the film).

When the body undergoes x-rays, different parts of the body allow varying amounts of the x-ray beams to pass through. The soft tissues in the body (such as blood, skin, fat, and muscle) allow most of the x-ray to pass through and appear dark gray on the film. A bone or a tumor, which is more dense than the soft tissues, allows few of the x-rays to pass through and appears white on the x-ray. At a break in a bone, the x-ray beam passes through the broken area and appears as a dark line in the white bone.

PLEASE NOTE: Radiation during pregnancy may lead to birth defects. Always tell your technologist and/or physician if you suspect you’re pregnant.

Exam Preparation

Please wear comfortable clothing for your exam and avoid any pants with metal snaps, zippers, or belts. You will be asked to change into a gown if your clothing features these items.

Find the best doctor for you.

View providers specializing in primary care in Vacaville and Fairfield.

Find A Specialist

Logo for the American College of Radiology stating our diagnostic imaging services are accredited. Click here to learn more about this accreditation.