System, nuclear magnetic resonance imaging: medical device reports filed with FDA

4,751 reports carry this product code, 1992–2026; 12 brands with a page.

Read first · FDA's statement on these data

Adverse event reports submitted to FDA do not undergo extensive validation or verification. Therefore, a causal relationship cannot be established between product and reactions listed in a report. While a suspected relationship may exist, it is not medically validated and should not be the sole source of information for clinical decision making or other assumptions about the safety or efficacy of a product. Additionally, it is important to remember that adverse event reports represent a small percentage of total usage numbers of a product. Common products may have a higher number of adverse events due to the higher total number of people using the product. openFDA, FDA

FDA adds: "Although MDRs are a valuable source of information, this passive surveillance system has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data. In addition, the incidence or prevalence of an event cannot be determined from this reporting system alone due to potential under-reporting of events and lack of information about frequency of device use." And: "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices."

Do not rely on openFDA to make decisions regarding medical care. While we make every effort to ensure that data is accurate, you should assume all results are unvalidated.

Not medical advice. This site counts what was reported to FDA. Questions about a medicine or device belong with a pharmacist or clinician.

4,751
reports with this product code: 0% of all MAUDE reports; 513
reports, 12 months to August 2026: 1,258 in the 12 months before; 43.3%
classified as malfunction: 62.3% across all reports; 0.8%
classified as death, as reported: 0.9% across all reports

Product code LNH is FDA's classification for "System, nuclear magnetic resonance imaging" (radiology panel), a class 2 device. 4,751 medical device reports carry this product code, 0% of the MAUDE database, from January 1992 to August 2026.

513 reports arrived in the 12 months to August 2026, down 59% from 1,258 in the 12 months before. FDA releases MAUDE data monthly; reports can arrive months after an event, so the newest months grow in later releases. The event types recorded are injury (46%), malfunction (43.3%) and other (8.1%). 12 brand names with a page on this site carry this code; the brands table is ordered by report count for navigation only. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data."

Brands with this product code

Brand	Reports	Latest 12 months	Classified as death	Classified as malfunction
Achieva 1.5T Dstream	350	60	0%	98.9%
Achieva 1.5T New	291	31	0%	74.9%
Ingenia	205	117	0%	83.4%
Achieva 1 5t Nova	156	11	2.6%	49.4%
Toshiba	20	0	1.9%	28.5%
Echelon	11	584	3.2%	72.8%
Eclipse	8	44	0.7%	82.2%
Philips	5	0	6.3%	78.9%
Breast Implants	1	20	1.1%	3.4%
Panorama	1	0	4.5%	93.6%
Symphony	1	133	1.6%	42.3%
Titan	1	0	0%	23.8%

Ordered by report count for navigation only. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data."

Manufacturers named

Manufacturer (as written on reports)	Reports	Share
Philips Electronics Nederland	1,128	23.7%
Ge Medical Systems	849	17.9%
Philips Medical Systems Nederland	545	11.5%
Philips Healthcare	357	7.5%
Philips Medical Systems	245	5.2%
Siemens Healthcare	131	2.8%
Siemens Medical Solutions USA	57	1.2%
Ge Healthcare	20	0.4%
Medtronic Navigation	10	0.2%
Philips North America	5	0.1%
Philips Medical Systems Cleveland	4	0.1%
Allergan	2	0%
Haemonetics	2	0%
Medtronic Navigation Louisville	2	0%
Datex-Ohmeda	1	0%

Reports by month, five years

FDA releases MAUDE data monthly; reports can arrive months after an event, so the newest months grow in later releases.

Event type and report source

Event type

Death0.8%37

Injury46%2,185

Malfunction43.3%2,057

Other8.1%383

Not given1.9%89

Who filed

Manufacturer report81.6%3,877

Voluntary report12.5%596

User facility report0%0

Distributor report1.9%92

Not given3.9%186

Grey bar: all 26,136,888 MAUDE reports.

Device problems coded

Device problem (FDA code)	Reports	Share
Detachment of device or device componentpart of the device came off	1,415	29.8%
Insufficient device problem information	659	13.9%
Improper or incorrect procedure or method	431	9.1%
Device operates differently than expectedthe device behaved unexpectedly	145	3.1%
Other (for use when an appropriate device code cannot be identified)	49	1%
Overheating of device	47	1%
Magnetic interference	46	1%
Device handling problem	45	0.9%
Fire	41	0.9%
Temperature problem	34	0.7%
Patient device interaction problem	31	0.7%
Patient-device incompatibilitythe device did not suit the patient	31	0.7%
Thermal decomposition of device	27	0.6%
Device emits odor	26	0.5%
Image reversal	26	0.5%
Breakthe device broke	25	0.5%
Electromagnetic interference	25	0.5%
Heat	25	0.5%
Image orientation incorrect	24	0.5%
Normal	24	0.5%

Questions about system, nuclear magnetic resonance imaging reports

What is product code LNH?

FDA's classification code for "System, nuclear magnetic resonance imaging", class 2, reviewed by the radiology panel. Every device report carries the product code of the device involved.

How many reports carry this code?

4,751 reports through August 2026, 513 of them in the latest 12 months.

Which brands appear most often?

Achieva 1.5T Dstream (350), Achieva 1.5T New (291), Ingenia (205), Achieva 1 5t Nova (156) and Toshiba (20). Widely used products collect more reports because more people use them.

Can the brands table be used to rank the devices?

No. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data." Brands differ in how many are in use, how long they have been sold and how reports are collected.

Where this comes from. Counts are built from the openFDA Device Adverse Event (MAUDE) bulk export released 28 Sep 2026, which holds reports FDA received through 31 Aug 2026. Brand, generic and manufacturer names are as written on the reports; product code names come from FDA's device classification. No report narrative, lot number, patient detail or reporter identity is published. See the methodology and sources; FDA's record is authoritative, and corrections are handled within five working days.

Drug data (FAERS) through 30 Jun 2026; device data (MAUDE) through 31 Aug 2026. Not medical advice.