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Imaging Services

ImagingImaging Services at Parkwest provide patients with high quality diagnostic and interventional services. Utilizing state-of-the-art technology, our skilled technologists and nurses assist radiologists in providing excellence in patient care. Our primary goal for Imaging Services is to assist physicians and other health care members in the diagnosis and therapy of patient’s disease through the use of radiography, radioisotopes, radio frequency and magnetic fields. All services are offered 24 hours 7 days a week. Specific Out-patient times are listed for each modality.

The following four principles represent the philosophy of Imaging Services:

  1. Provide imaging services as accurately, safely and expeditiously as possible.
  2. Always be aware of radiation protection and minimization of patient exposure.
  3. Maintain open lines of communication between, patients, family, physicians, employees and the general public in order to promote the well being of the public we serve.
  4. Treat all individuals with respect, dignity and kindness at all times.

CT Scans

CT scans (computed tomography scans) were originally developed in the 1970’s. A CT scan combines the power of x-ray technology and computerized imagery to take layered pictures of hard and soft tissues, including organs and bones. Approximately 2300 scans are performed monthly at Parkwest. All Technologists are ARRT registered.

Two scanners are in operation at Parkwest: GE 16-slice Lightspeed and our new GE 64-slice VCT (Volume Computed Tomography) and our new GE 64-slice VCT (Volume Computed Tomography)

Contact Information and Hours

(865) 373-1530
Fax: 865-373-1506
Hours: M-F 7a-8p; Sat 8a-4p

Services offered

  • Cardiac
  • Vascular-CT arteriogram
  • Routine head and body
  • Orthopedic
  • Biopsies and drainages
  • 3-D reconstruction/reformation
  • Other general CT scans

Exam Information

Patients are encouraged to wear comfortable clothing with minimal jewelry and metal. Some exams may require removal of earrings, necklaces, hair pins, dentures, partials, etc. to ensure quality images.

Always inform the technologist or RN if you are pregnant or may be pregnant.

Upon arrival, patients will be registered and escorted to the Out-patient waiting area. The patient will be requested to complete a medical history form. If Lab work is required, this will be completed prior to the CT exam. A technologist or RN will explain the procedure prior to the exam and answer questions.

Oral and/or IV contrast may be required for the CT exam. If so, our experienced Technologists or RN’s will instruct the patient to drink the oral contrast and/or will start an IV line (INT) to administer the contrast. Preparation time varies depending upon the exam.

  • IV contrast is used to enhance the organs and vessels.
  • Oral contrast is used to differentiate the stomach, small bowel, and colon.

Most exams take less then 10 minutes to complete and require minimal preparation. Exams requiring additional time and preparation are as follows:

CT Abdomen: For patients requiring oral contrast, no food or drink for 4 hours prior to the exam.

CT Pelvis: For patients requiring oral contrast, no food or drink for 4 hours prior to exam.

Biopsies and Drainages: Patients are required to report to the hospital 2 hours prior to their exam. After registration is complete, the patient is taken to Ambulatory Staging for preparation of the exam, i.e. medical history, IV line started if required, site preparation, etc. Patients requiring sedation or having an invasive procedure must have a driver to take them home. Patients on blood thinners may be required to stop taking the medication prior to the exam. Consult your physician or call Imaging Services before stopping any medication.

If your physician requests copies of your exam, a CD will be provided prior to your discharge.

Diagnostic Imaging (X-Ray)

X-Rays are a form of electromagnetic radiation. In the hospital setting, x-rays are emitted by a machine as individual particles that pass through the body and then get detected. Radiation protection and minimization of patient exposure is always considered for patient safety. All Technologists are ARRT registered.

Contact information and hours

(865) 373-1500
Fax: 865-373-1506
Hours: Monday through Friday 7a-8p

Services offered

  • Routine exams-Chest, Orthopedic, Abdominal, etc.
  • LP’s
  • Myelogram
  • Fluoroscopy
  • Alimentary tract barium studies
  • Hystereosalpingogram
  • Arthrography

Exam Information

Patients are encouraged to wear comfortable clothing with minimal jewelry and metal. Some exams may require removal of earrings, necklaces, hair pins, dentures, partials, etc. to ensure quality images.

Always inform the Technologist or RN if you are pregnant or may be pregnant.

Upon registration, patients will be escorted to our Out-patient waiting area. The patient will be requested to complete a medical history form. If Lab work is required, this will be completed prior to the exam. A Technologist or RN will explain the procedure prior to the exam and answer questions.

All information regarding patient preps will be provided by Centralized Scheduling. For some exams, patients may be required to drink barium and will be encouraged to drink plenty of fluids post procedure. Patients on blood thinners may be required to stop taking the medication prior to the exam. Consult your physician or call Imaging Services before stopping any medication.

If your physician requests copies of your exam, a CD will be provided prior to your discharge.

MRI Scans

MRI at Parkwest is an American College of Radiology Accredited (ACR) facility and features a GE 3-tesla magnet and a GE 1.5 tesla magnet.

MRI (Magnetic Resonance Imaging) is a non-invasive procedure that uses powerful magnets and radio waves to create detailed image of the body. Unlike conventional radiography and CT, no radiation is used. All Technologists are ARRT registered with advanced registry.

Contact information and hours

(865) 373-0043
Fax: 865-373-1516
Hours: Monday through Friday 6:30am-11pm
Saturday 7-3:30pm

Services offered

  • Orthopedic-shoulder, knee, hip, spine, etc.
  • Neuro-Brain
  • Vascular-Renal, abdomen, carotid and vertebral, aorta grams
  • Breast
  • Brain Labs

Exam Information

A technologist or tech aide will call the patient the night prior to the exam. During this call the staff representative questions patients about metal implants, pacemakers, etc. and address any questions. Patients are encouraged to wear comfortable clothing without metal and no jewelry.

Upon registration, patients will be escorted to our Out-patient waiting area. The patient will be requested to complete a medical history form. A technologist or tech aide will explain the procedure prior to the exam, review the medical history form and ask safety questions about metal implants, pacemakers, etc.

Patients will be changed into hospital gowns prior to the exam, or the patient may be allowed to wear a sweat suit or similar clothing without metal fasteners.

Because of the strong magnets, certain metal objects are not allowed into the room:

  • Items such as jewelry, watches, credit cards and hearing aids can be damaged.
  • Pins, hair pins, metal zippers and similar objects.
  • Removable dental work should be taken out prior to the exam.
  • Pens, pocketknives, and eyeglasses etc. can be dangerous projectiles and should not be taken into the magnet room.

MRI also should not be used for people with metal objects in their bodies, such as:

  • Inner ear (cochlear) implants
  • Some brain aneurysm clips
  • Some artificial heart valves
  • Older vascular stents
  • Recently placed artificial joints
  • Pacemakers

Patients who are claustrophobic may not be able to complete the exam. Ear plugs will be provided for the patient due to the loud noises generated from the MRI during normal operation. Exam time may be 45 minutes or greater. Some procedures require IV contrast after the initial exam. A technologist or RN will start your IV line (INT) so the contrast can be injected and the second phase of the scan will be completed.

If your physician requests copies of your exam, a CD will be provided prior to your discharge.

Nuclear Medicine

Nuclear Medicine is an exam that requires an IV line (INT) through which a radioactive isotope is injected, specializing in imaging of organ’s metabolic functions, which indicates how the organ is working. Four cameras are available for patient exams. All Technologists are NMTCB certified.

Hours and contact information

(865) 373-1542
Fax: 865-373-1506
Hours: Monday through Friday 6:30a-7p
Saturday and Sunday 7a-3p

Services Offered

  • Bone Scans
  • Heart Scans
  • Hepatobiliary Scans
  • Thyroid Scans
  • General Nuclear Medicine Scans

Exam Information

Patients are encouraged to wear comfortable clothing.

Always inform the technologist or RN if you are pregnant or may be pregnant.

Upon arrival, patients are registered and escorted to our Out-patient waiting area. The patient will be requested to complete a medical history form. If Lab work is required, this will be completed prior to the exam. A technologist will explain the procedure prior to the exam and answer questions.

Testing can take as little as 30 minutes or may require a longer time depending upon the exam ordered. Some tests require the patient to be scanned and then a waiting period before the patient is brought back for a second scanning time. If your physician requests copies of your exam, a CD will be provided prior to your discharge.

Special Procedures (Interventional Radiology)

Special Procedures (Interventional Radiology) offers a full spectrum of diagnostic and interventional procedures. All Technologists are ARRT registered and RN’s are ACLS certified.

Contact information and hours

(865) 373-1526
Fax: 865-373-1528
Hours: M-F 7a-5p

Services Offered

  • Diagnostic Arteriography and Venography
  • Angioplasty/stent placement
  • Central venous access (Permacath, Portacath)
  • Dialysis fistula/graft declotting
  • IVC Filter placement
  • Uterine Fibroid Embolization
  • Liver chemo-embolization and Radiofrequency ablation
  • TIPS
  • Biliary and genitourinary drainage
  • Vertebroplasty
  • Other specialized procedures

Exam Information

An RN will call the patient prior to the procedure. During this call the RN will review pertinent patient information and history, i.e. prior exams, current medications, etc., and answer any questions.

Always inform the technologist or RN if you are pregnant or may be pregnant.

Patients will be required to report to the hospital 2 hours prior to their exam. Patients must have an adult to drive them home post procedure and care for them at home. Patients on blood thinners may be required to stop taking the medication prior to the exam. Consult your physician or call Imaging Services before stopping any medication.

Upon arrival, patients will be registered. After registration is complete, the patient will be taken to Ambulatory Staging for preparation of the exam, i.e. medical history, IV line started if required, site preparation, etc.

The Interventional Radiologist will explain the procedure prior to the exam and consult with the family to answer questions. The procedure may require conscious sedation with an IV, and the patient will be monitored at all times by an RN. Actual procedure time will vary dependent upon the type of procedure.

If your physician requests copies of your exam, a CD will be provided to you prior to your discharge.

Ultrasound

Ultrasound at Parkwest is an American College of Radiology Accredited (ACR) facility. Ultrasound uses ultra high-frequency sound waves which are reflected off of the body organs, vessels, etc to produce images. No radiation is used in Ultrasound imaging. All Sonographers are ARDMS.

Contact hours and information

(865) 373-1520
Fax: 865-373-1525
Hours: M-F 7a-7p
Sat 7a-12p

Services Offered

  • Vascular
  • Small Parts
  • Limited OB
  • GYN
  • Biopsies
  • Thoracentesis and paracentesis
  • Other general Ultrasound scans

Exam Information

Patients are encouraged to wear comfortable clothing.

After registration of non-invasive Ultrasound patients, the patient will be escorted to our Out-patient waiting area. The patient will be requested to complete a medical history form. If Lab work is required, this will be completed prior to the exam. A Sonographer will explain the procedure prior to the exam and answer questions.

For invasive Ultrasound, patients are required to report to the hospital 2 hours prior to their exam. Patients having an invasive procedure or requiring sedation must have an adult to drive them home from the hospital and to care for them at home post procedure. Patients on blood thinners may be required to stop taking the medication prior to the exam. Consult your physician or call Imaging Services before stopping any medication.

After registration is complete, the patient will be taken to Ambulatory Staging for preparation of the exam, i.e. medical history, IV line started if required, site preparation, etc. The Interventional Radiologist will explain the invasive procedure prior to the exam and answer questions.

If your physician requests copies of your exam, a CD will be provided prior to your discharge.