About Mallinckrodt Institute of Radiology

Mallinckrodt Institute of Radiology (MIR) is a premier radiological center, providing a full range of diagnostic, therapeutic, and related patient-care services. It is a major resource of Washington University Medical Center, supporting the educational aims of the university and hospitals through teaching programs and supporting and encouraging a variety of basic and applied research, with special emphasis on radiological science. MIR’s mission is complex — it must provide the best cost-effective patient care, educate students to be future leaders in the field, and seek new knowledge to improve diagnosis and treatment of patients. In every respect, MIR desires to achieve excellence at the highest level locally, nationally, and internationally.

Mallinckrodt Institute of Radiology at a Glance

Physical Size

More than 400,000 square feet, comprising its own 13-story building with satellite facilities in Barnes-Jewish and St. Louis Children’s hospitals, the Clinical Sciences Research and East buildings, the Scott Avenue Imaging Center, the Center for Advanced Medicine, and the Charles F. Knight Emergency and Trauma Center. Services also are provided at Barnes-Jewish West County, Barnes-Jewish St. Peters, and Progress West hospitals and at the Washington University Orthopedics and Barnes-Jewish Hospital Outpatient Orthopedic Center, as well as other locations.

Approximately 170,000 square feet devoted to research

102 examination rooms


610 employees, including 140 academic staff (of which 82 have an MD degree; 12, an MD/PhD; and 38, a PhD)


(July 1, 2014 through June 30, 2015)

793,757 diagnostic examinations

14,255 nuclear medicine examinations

52,805 interventional radiology procedures

Radiology Equipment at Washington University Medical Center

(including clinical and research)

13 computed tomography scanners

1 positron emission tomography scanners

1 PET/MR scanner

2 PET/CT scanners

4 medical cyclotrons

15 magnetic resonance imaging scanners (including an 11.7 Tesla research scanner)

16 gamma cameras

2 bone densitometry units

12 high-end ultrasound machines

7 portable ultrasound units

6 mammography units

1 mobile mammography van

9 interventional radiology systems

3 neurointerventional radiology systems

6 digital chest units

10 computer radiography units


Mallinckrodt Institute of Radiology is among the top recipients of National Institutes of Health funding of radiology departments.

View the video below to hear about the history of Mallinckrodt Institute of Radiology: