EXHIBIT 99.1 (B) (b) (i) PRO FORMA FINANCIAL INFORMATION INSIGHT HEALTH SERVICES CORP. UNAUDITED PRO FORMA COMBINED CONDENSED BALANCE SHEET MARCH 31, 1998 (Amounts in thousands) Signal Pro Historical Historical Acquisition Forma InSight Signal Adjustments Combined ---------- ---------- ----------- -------- ASSETS Cash and cash equivalents $ 9,650 $ 1,642 $ - $ 11,292 Trade accounts receivable, net 21,674 3,397 - 25,071 Other receivables, net 330 239 - 569 Other current assets 2,149 121 - 2,270 --------- --------- --------- --------- Total current assets 33,803 5,399 - 39,202 Property and equipment, net 46,745 12,286 4,309 (2) 63,340 Investment in partnerships 495 - - 495 Other assets net 2,471 660 3,131 Intangible assets, net 43,273 - 26,189 (1) 69,462 --------- --------- --------- --------- $ 126,787 $ 18,345 $ 30,498 $ 175,630 --------- --------- --------- --------- --------- --------- --------- --------- LIABILITIES AND STOCKHOLDERS' EQUITY Current portion of equipment and other notes $ 5,706 $ 3,302 $ - $ 9,008 Accounts payable and accrued expenses 14,905 2,121 - 17,026 --------- --------- --------- --------- Total current liabilities 20,611 5,423 - 26,034 Long term portion of equipment and other note 67,781 4,598 32,155 (1) 4,309 (2) 108,843 Other 680 2,358 - 3,038 --------- --------- --------- --------- Total liabilities 89,072 12,379 36,464 137,915 --------- --------- --------- --------- Minority interest 1,871 - - 1,871 --------- --------- --------- --------- Redeemable convertible cumulative preferred stock - 2,000 (2,000)(1) - --------- --------- --------- --------- Stockholders' equity Convertible Series B preferred stock 23,923 - - 23,923 Convertible Series C preferred stock 13,173 - - 13,173 Common Stock 3 - - 3 Additional paid-in capital 23,366 156 (156)(1) 23,366 (Accumulated deficit) retained earnings (24,621) 4,310 (4,310)(1) (24,621) Treasury stock - (500) 500 (1) - --------- --------- --------- --------- Total stockholders' equity 35,844 3,966 (3,966) 35,844 --------- --------- --------- --------- $ 126,787 $ 18,345 $ 30,498 $ 175,630 --------- --------- --------- --------- --------- --------- --------- --------- The pro forma condensed combined balance sheet as of March 31, 1998 reflects the following pro forma adjustments: (1) To record the acquisition of common stock of Signal for $32,155 in borrowed funds and the resulting goodwill of $26,189. (2) To record the acquisition of equipment for debt on equipment that is currently under operating leases. The above reflects the acquisition of Signal by InSight using the purchase method of accounting. Under the principles of purchase accounting, the assets and liabilities of Signal are stated at fair market value (FMV). For purposes of these pro forma financial statements, the book value of Signal's assets and liabilities are assumed to approximate FMV. The excess purchase price is allocated to goodwill. 24 (b) (ii) INSIGHT HEALTH SERVICES CORP. UNAUDITED PRO FORMA COMBINED CONDENSED STATEMENT OF OPERATIONS FOR THE YEAR ENDED JUNE 30, 1997 (Amounts in thousands) Signal Historical Historical Acquisition Pro Forma InSight Signal Adjustments Combined ----------- ---------- ----------- --------- Revenues $ 93,063 $ 19,331 $ - $ 112,394 ----------- --------- ---------- --------- Costs of services 52,070 9,390 - 61,460 Equipment leases 18,396 3,651 (1,518)(4) 20,529 Depreciation and amortization 9,871 3,354 1,309 (1) 15,396 --------- 862 (2) ----------- --------- ---------- --------- Costs of operations 80,337 16,395 653 97,385 ----------- --------- ---------- --------- Gross profit 12,726 2,936 (653) 15,009 Corporate operating expenses 7,431 - - 7,431 ----------- --------- ---------- --------- Income (loss) from company operations 5,295 2,936 (653) 7,578 Equity in earnings of unconsolidated partnerships 468 - - 468 ----------- --------- ---------- --------- Operating income (loss) 5,763 2,936 (653) 8,046 Interest expense 4,055 720 2,894 (3) 7,669 ----------- --------- ---------- --------- Income (loss) before provision for taxes 1,708 2,216 (3,547) 377 Provision (benefit) for income taxes 427 887 (1,220)(5) 94 ----------- --------- ---------- --------- Net income (loss) $ 1,281 $ 1,329 $ (2,327) $ 283 ----------- --------- ---------- --------- ----------- --------- ---------- --------- Income (loss) per common and preferred share: Basic $ 0.25 $ 0.05 Diluted $ 0.24 $ 0.05 Weighted average common shares outstanding: Basic 5,215 5,215 Diluted 5,440 5,440 The pro forma combined condensed statement of operations for the year ended June 30, 1997 reflects the following acquisition adjustments: (1) To record amortization of goodwill over 20 years. (2) To record depreciation expense on operating leases purchased. (3) To record interest expense for acquisition financing. (4) To record the reversal of lease expense on operating leases purchased. (5) To record the tax effect on the above entries at estimated effective rates. 25 (b) (iii) INSIGHT HEALTH SERVICES CORP. UNAUDITED PRO FORMA COMBINED CONDENSED STATEMENT OF OPERATIONS FOR THE NINE MONTHS ENDED MARCH 31, 1998 (Amounts in thousands) Signal Historical Historical Acquisition Pro Forma InSight Signal Adjustments Combined ---------- ---------- ----------- --------- Revenues $ 85,673 $ 16,095 $ - $ 101,768 --------- --------- --------- --------- Costs of services 46,038 5,993 - 52,031 Equipment leases 12,983 2,412 (1,138)(4) 14,257 Depreciation and amortization 10,670 2,989 982 (1) 15,287 646 (2) --------- --------- --------- --------- Costs of operations 69,691 11,394 490 81,575 --------- --------- --------- --------- Gross profit 15,982 4,701 (490) 20,193 Provision for supplemental service fee termination 6,309 - 6,309 Corporate operating expenses 6,510 2,165 - 8,675 --------- --------- --------- --------- Income (loss) from company operations 3,163 2,536 (490) 5,209 Equity in earnings of unconsolidated partnerships 480 - - 480 --------- --------- --------- --------- Operating income (loss) 3,643 2,536 (490) 5,689 Interest expense 4,665 492 2,170 (3) 7,327 --------- --------- --------- --------- Income (loss) before provision for taxes (1,022) 2,044 (2,660) (1,638) Provision (benefit) for income taxes 431 829 (997)(5) 263 --------- --------- --------- --------- Net income (loss) $ (1,453) $ 1,215 $ (1,663) $ (1,901) --------- --------- --------- --------- --------- --------- --------- --------- Income (loss) per common and preferred share: Basic $ (0.19) $ (0.25) Diluted $ (0.19) $ (0.25) Weighted average common shares outstanding: Basic 7,590 7,590 Diluted 7,590 7,590 The pro forma combined condensed statement of operations for the nine months ended March 31, 1998 reflects the following acquisition adjustments: (1) To record amortization of goodwill over 20 years. (2) To record depreciation expense on operating leases purchased. (3) To record interest expense for acquisition financing. (4) To record the reversal of lease expense on operating leases purchased. (5) To record the tax effect on the above entries at estimated effective rates. 26