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Novel PET/MR Imaging Approach for Persistent Postsurgical Pain Following Joint Replacement

Award Number: R01AR077706
ORGANIZATION: NATIONAL INSTITUTE OF ARTHRITIS & MUSCULOSKELETAL & SKIN DISEASES
OPDIV: NIH
AWARD CLASS: DISCRETIONARY
AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)

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Project Abstract Overview: This project aims to develop a reliable 18F-fluorodeoxyglucose (18F-FDG) PET/MRI method with novel metal artifact correction techniques to provide early identification of prosthetic complications causing persistent postsurgical pain (PPSP) following total hip arthroplasty (THA). Relevance: THA is one of the most rapidly growing procedures to treat the end-stage hip joint pain and dysfunction, and its annual cases are estimated to reach 572,000 by 2030. Unfortunately, a substantial number of patients experience PPSP after the procedure, which, without proper treatment, can significantly impair the quality of life. However, the early identification of pain generators for these patients is very difficult because the current diagnostic methods including X-ray, CT, and MRI, have limited sensitivity to pain and suffer from severe artifacts induced by metal in prostheses. Therefore, there is a pressing need for a novel diagnostic approach to accurately identify the abnormal inflammatory changes causing persistent pain to guide the appropriate treatment matched to the exact sources of pain. Approach: We propose the use of 18F-FDG PET/MRI for early identification of sources of PPSP following THA. Our previous 18F-FDG PET/MRI study of chronic pain syndromes demonstrated promising improvements in detecting sites of painful inflammation. However, the severe metal artifacts near metallic prostheses limit the application of 18F-FDG PET/MRI to THA patients. Therefore, our first aim in this project is the development of metal-aware attenuation correction for PET to enable reliable 18F-FDG PET near the metallic prosthesis. Our second aim is the development of high-resolution hip MRI at 3T with metal artifact correction to improve our ability for identifying structural causes of PPSP symptoms. Our third aim is to validate the improvements by 18F- FDG PET/MRI in detection of the pain generators compared to PET/CT and conventional MRI. This will be accomplished by correlating the pain score measurements with 18F-FDG PET/MRI abnormalities at 6 months, 12 months, and 18 months following the unilateral THA procedure. Summary: We propose to develop a novel 18F-FDG PET/MRI approach with metal artifact correction methods for early detection of periprosthetic complications causing PPSP following THA. Successful implementation of our method will enable early indication of individualized, effective treatments for THA patients with PPSP.


Issue Date FY	Funding FY	Legal Entity Name	Legal Entity Address	Legal Entity City	Legal Entity State	Legal Entity Zip Code	Legal Entity COUNTY	Legal Entity COUNTRY	Assistance Listing	Award Code	Budget Year	Action Date	Action Type	Action Amount

Issue Date FY: 2024 ( Subtotal = $0 )
2024	2023	UNIVERSITY OF WISCONSIN SYSTEM	21 N PARK ST STE 6301	MADISON	WI	53715	DANE	USA	Arthritis, Musculoskeletal and Skin Diseases Research	001	3	3/22/2024	CHANGE OF GRANTEE / TRAINING INSTITUTION / AWARDING INSTITUTION	$0
2024	2023	UNIVERSITY OF WISCONSIN SYSTEM	21 N PARK ST STE 6301	MADISON	WI	53715	DANE	USA	Arthritis, Musculoskeletal and Skin Diseases Research	000	3	11/9/2023	CHANGE OF GRANTEE / TRAINING INSTITUTION / AWARDING INSTITUTION	$0
														Subtotal = $0

Issue Date FY: 2023 ( Subtotal = $579,260 )
2023	2023	UNIVERSITY OF WISCONSIN SYSTEM	21 N PARK ST STE 6301	MADISON	WI	53715	DANE	USA	Arthritis, Musculoskeletal and Skin Diseases Research	001	3	8/25/2023	CHANGE OF GRANTEE / TRAINING INSTITUTION / AWARDING INSTITUTION	$579,260
2023	2022	THE LELAND STANFORD JUNIOR UNIVERSITY	450 JANE STANFORD WAY	STANFORD	CA	94305	SANTA CLARA	USA	Arthritis, Musculoskeletal and Skin Diseases Research	000	2	8/24/2023	NON-COMPETING CONTINUATION	$0
														Subtotal = $579,260

Issue Date FY: 2022 ( Subtotal = $608,405 )
2022	2022	LELAND STANFORD JUNIOR UNIVERSITY, THE	450 JANE STANFORD WAY	STANFORD	CA	94305	SANTA CLARA	USA	Arthritis, Musculoskeletal and Skin Diseases Research	001	2	6/3/2022	NON-COMPETING CONTINUATION	$55,312
2022	2022	LELAND STANFORD JUNIOR UNIVERSITY, THE	450 JANE STANFORD WAY	STANFORD	CA	94305	SANTA CLARA	USA	Arthritis, Musculoskeletal and Skin Diseases Research	000	2	3/4/2022	NON-COMPETING CONTINUATION	$553,093
														Subtotal = $608,405

Issue Date FY: 2021 ( Subtotal = $631,065 )
2021	2021	LELAND STANFORD JUNIOR UNIVERSITY, THE	450 JANE STANFORD WAY	STANFORD	CA	94305	SANTA CLARA	USA	Arthritis, Musculoskeletal and Skin Diseases Research	000	1	5/4/2021	NEW	$420,193
2021	2021	LELAND STANFORD JUNIOR UNIVERSITY, THE	450 JANE STANFORD WAY	STANFORD	CA	94305	SANTA CLARA	USA	Arthritis, Musculoskeletal and Skin Diseases Research	001	1	7/31/2021	NEW	$210,872
														Subtotal = $631,065

Grand Total All Awards = $1,818,730

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Novel PET/MR Imaging Approach for Persistent Postsurgical Pain Following Joint Replacement

Award Number: R01AR077706

ORGANIZATION: NATIONAL INSTITUTE OF ARTHRITIS & MUSCULOSKELETAL & SKIN DISEASES

OPDIV: NIH

AWARD CLASS: DISCRETIONARY

AWARD ACTIVITY TYPE: SCIENTIFIC/HEALTH RESEARCH (INCLUDES SURVEYS)

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